I'm in desperate need for money right now. I need 3-5 BTC. I don't know what to do. I can't find a job because I have social anxiety. I have just 10 full member accounts in bitcointalk, that's it. I can sell it, maybe, but these accounts isn't even worth 1 BTC 
Its really sad to hear that you are going through this phase of your life and that is true that full member accounts will never give you that high amount but I don't understand why you need that high amount desperately?
I remember to had read something about a person who had around 5-10 accounts at signatures and those person were earning around 0,20-0,50btc weekly, sure those person should be already banned or the english and quality from the post are excelent making the person make a living from here. If you sell those full and even when they became senior they still wont reach 1 btc, in the past full members were traded at 0,04 and senior around 0,10btc, since the halving price the accounts keep being sold for the same ammount in dollar but less bitcoins.
even with legendary account actually, the earning may still not be enough. if it is they would have been no users selling thier legendary account.
one should have learned a skill useful enough to find a job in the bitcoin economy. social media marketing skills could be good.