[Elision]

Have you tried explaining to your mum that you feel lonely? I think parents always worry about their children's friends, because they have such a big impact on your life. Particularly if most friends are male, parents worry about their motives and such like. But no parent wants their child to be lonely, so I definitely think you should explain that this isn't helping although you understand her concern.

If she still doesn't agree, I would say perhaps you could arrange to meet with your friends in public places, and probably in groups just to be on the safe side. You could also introduce your friends to her through like a passing meeting or something so she realises they are good people to hang with. I agree that it isn't right that your mum gives you so little privacy - particularly as you get older it's something you certainly need.

I would recommend having a serious conversation with your mum about it, and try to get her to meet the, if you can.

Best of luck!