I've been taking Photographs for over 50 years, and can answer all your questions, but would take me a couple of months, at the least.
Be more specific. Take some images, post them, than ask for critique.
I would also be willing to help... although I havent been doing photography for quite 50 years... but like Philip says... post some stuff up and everyone will help out!
Hi TieraB, welcome to ThePhotoForum,
have a good look around, browse the galleries at length, and read questions and replies to questions and you will find out a lot.
Furthermore you are always welcome to post your own photos and have them revised/commented on/critiqued by other members. That is how things are generally done on here.
Have fun.