Loneliness;anxiety, depressed

 Must believe  me when i tell no one cares about rumours at all its all about themselves. They only care how things directly effect themselves.  Im positive in that you just need to believe me. 20 should be deemed the mememe age and last till graduation of college when the real world smacks them upside the head. Some adults carry their immaturity with them and are jerks too, happily adults laugh at this and walk away from it if they are smart. There are good, kind people out there dont ever assume otherwise. Lots of rats yes, but avoid or dont interact with those people. Dont worry life will give you tons of chances on meeting new people.  What you are going thru is isolating, you are a bit lost here. Lets refer to this as " the turning point in your life" get into therapy and talk and talk about everything and anything that weighs you down. If needed meds if you have a chemical embalance. Thats not in your control anyway.  The answer to all this is drag your drained body and help it. Hellp the body by feeding it healthy foods, use meds if needed and drag the mind into theraoy to get the root cause and squash it. It will take time. No instant gratification is available here. Love yourself enough to helo yourself. You have a good sixty or more years in that body and using that mind so it is worth the effort of working on all this. Im not extremly knowledgable about depression but i dont  think you can snap it out of you somseek the help you need. 

The teenage years are  often very hard honey. Very few people emerge unscathed. Now you are facing a new phase in your life. Those  teenage years are behind you

It's easy for me to say don't look back. But that is the first lesson you have to learn and a hard one. We cannot change the past we can only learn from it. The friends you lost were not true friends. True friends stand by you through thick and thin. Having said that teenagers are somewhat fickle and revel in creating drama.

I'm sorry you were bullied. But it is how you look back on that  episode that is vital to regaining your condfidence.

Bullies as a rule hone in on someone because they see in their victim, something  that they can never have nor  ever be. That might seem strange to you. But bullying is a form of jealousy

. It is also a form of cowardice. If they bully someone then they, by virtue of the fact that they are diverting attention from what they perceive to be their own shortcomings,are protecting themselves from the same fate

I understand you have trust issues. Don't allow this to hold you back. You are so young and life literally stretches before you with lots of wonderful things to come.

When meeting new people, hold a bit of yourself back. Keep a part of yourself and your life private. New friends don't need to know everything about you until you can trust them implicitly That will be your safety net.

It's not about you either. It's about whether they are worthy of being your friend, not the other way round

Have you seen your GP about your anxiety/depression?

And why are you alone all day ?