Affected by bullying and being made fun of

Hello I am 20 years old now and I am still affected by being bullied a lot when I was at school and being made fun of as unfortunately it is still happening but I just need help and advice on how I can end this as it is affecting me quite a lot and also I want everyone including the government to treat people in their late teens and early 20s as full adults and not as young teenagers or children anymore as this is also affecting me quite a lot too because also they can do many things that they could not have done before. It affects me a lot at college and stops me from wanting to go outside, enjoy life more and also it has caused me to suffer from social anxiety and anger issues.