Well we all can help you to acomplish your goals. There are alot of people that are on here that have alot of knowledge. We help as much as we possibly can but most of the choices comes down to you. There is another thread that someone was asking what gun they should get... well everyone gave there opinion and the person had to make there own choice based on the information that they recieved.
Your starting fresh... i would first go to SoGo and take jon's advice... shoot a few guns. Get the feel of how each one fits. If there is anything that i have learned from this sport is... comfort is the key. Example: I reciently hurt my back playing airsoft because of where my sling was positioned forcing me to hunch over while playing. I know it wasnt comfortable but i have this thing... its called stupidism... yea doctor told me i would out grow it... i digress. Point being go to SoGo jon has a good selection of what to start with. There are even some things on the used wall that would fit just take a look at everything.
The best part about working with Jon is that he makes sure your happy with your purchase no matter what. If its upgrading your gun or buying new he makes sure that you are satisfied. I dont know if your a Rifle, Pistol, SMG person but you will be able to get a good feel on everything there.
I would love to hear what you find there and like i said before if there is anything we can help with please feel free to ask on the forum we love helping people. If you get a chance look thru what you can on the forums maybe some of your questions have already been answered dont know. I beleive i am done with this book so i am going to let you go for now. Let us know how everything goes.