After my suicide attempt Ive felt exactly the same. I literally just went to my parents and said "look, I no you were only worried but ..."'and told then exactly how I felt like they were suffocating me and wouldn't let me be on my own for more than half an hour and after I told them it wasn't helping and that I understood why and reassured them that they could trust that if things got bad I'd go to them, they calmed down and are gradually getting back to normal, I think if you just open up to them they will realise and not be so overprotective? Ultimately they all CARE and LOVE you and only want what's best for you. And I understand that all you want to do is be on your own and hide away but honestly it won't help, some alone time is good, but it's good to be around everyone too. I really hope thinks look up - we can get past this! Be strong.