I'd just like to know how much not having much support from your family or just not as much you expected them to give you because you're LGBT could affect you in a negative way.

Well, coming out can be difficult..try to remember how long it took before you came out and how afraid you where when you did. I have a saying..when someone comes out..someone goes in the closet..What I mean by that is that for some family members who have negative ideas about this..for them it's hard to deal with it..they may never be able to deal with it until they get more "education about it" Just be who you are and don't force it on them..some will deny you, others will tolerate and others will accept..and all this can change with time. The best support you can get now is from a lgbt group and from those who accept you like you are. You must build you're own confidence about you're sexual identity and learn about dealing with all the stigmatization around it. Times are better now..but I see you are in brazil..I don't know how it is in you're county..maybe harder than in the us or canada. good luck and hope you find the support you need.