I market myself as a freelance photographer because I (in all honesty) haven't found that "pocket" I feel best fitted for. And as I would guess, most of us here, we're part timers, which is the information that you need first. Never mind the full time thing yet.
I personally come from a totally different direction in the business. Although I was a full time studio photographer in the past, I gave it up when my daughter came around. I found myself in a bit of a moral battle with myself because the work I did catered to women exclusively. The photos started off (in each session) with as much clothes as the model could wear and ended with as little clothes if any as they could wear (which, by the way in my opinion is the most technical portrait that you can take. Nudes are a difficult subjects to photograph). I didn't feel that this kind of photography was something that I needed to make a career out of with a wife and new daughter at home.
Fast forward to about 4 years ago. I was involved in a theater company as a scenic designer and actor in a local company. I bought a Nikon D70 kit to take some snapshots of a production that I built the set of and I took this photo:
That's when the passion started again. So... to your questions.
I would first of all start by reading and studying photography books and forums constantly. Look at things that are interesting to you but you have to keep in mind "what things are marketable" and what aren't. You can take thousands of "you photos" that only mean something to you! I have thousands of them
but I know that they probably won't sell as art to too many people. I do know that you need to keep it simple at first and find that market you feel comfortable with and shoot photos there.
As for the freelance thing. I happened into this again by offering those photos taken of Wiz of Oz to the parents (I took over 1200 shots). Then I carried my camera to the ballgames to take pitcures of my kids soccer, field hockey and softball games... parents there too! Then I took photos of a concert at my church and after a few months, I became the official photographer there (which is a large church and I shoot a lot of stock and commercial work) and that has lead to working for outside associations for their photo work. If I go to a concert that allows cameras, I take it and shoot it and give a card to the band. Most of the time, I take pictures for the sake of just taking them to practice lighting, depth of field, blah, blah, blah. Always take photos!
I really don't have a day in the life story but I can give a month in the life. Along with working my "real job" as a remodeling contractor (which uses up around 60 hours of my week), I manage to book stuff on the weekends. The last month I have had a marching band competition (12 bands, 2300 photos, 1 day!), a high school home coming football game (crowd shots), 4 family portrait sessions, 3 seniors sessions and an engagement shoot (for a wedding I am taking in June '08). Next week I have a family of 6, followed by another family of 6, followed by a family of 4 and a senior session. Plus I talked my way into a fashion show as a photographer on Sunday. I am already booked for another model portfolio session and a Christmas Program the first part of December. Today I gave a proof cd to one of my recent family sessions (which included cd printed with their image on it - the funny face shot, a thank you note, 3 pricing handouts for their friends with their image on it and 50 business cards of my pick of their best portrait as a photo business card with my information on it - this way, their friends want to see the photo and I want their friends to see my phone number!). Today as well, I did something new to me because of my real job. I have been working on a mega yatch
http://www.charterworld.com/index.html?sub=yacht-charter&charter=passion-1177 and I talked to the captain about taking some photos of it and it's crew, to which he agreed.
So... part of this photo thing is luck, part is passion, part of it is timing. A lot of it (imo) is professionalism and rock solid marketing, but you can not ever forget that it is mostly about the image itself. Learn, watch others, shoot until you have a blister on your finger and don't ever, ever, ever dismiss those that offer constructive criticism, especially if after seeing their portfolio. If you just want to run away and curl up in the fetal position and cry out in your unworthiness in their photography presents... listen to what they have to say. You might just learn something.
That was an abbreviation. And personally speaking, I am wiggling myself into the commercial event photography (loosely photo journalistic based event coverage) and I am leaning toward theatric coverage. I am not the wedding or babies guy (although I shoot them semi-regularly)
Good luck
David
BTW: What is the focal point of your posted photo?