I don’t know anymore

I have depression and anxiety and I don’t really have any support in my family and friends. I don’t talk to my mum, I haven’t seen or talked to my dad in 10 years so I literally don’t have anyone. I can’t go to therapy because it’s hell expensive and tbh I’m just so lost I am 17 and I am struggling to live. My mental health is idk just not good I try to workout everyday but sometimes I just can’t get out of bed. I am just so numb and so tired of everything I try to make myself smile or be happy but I just have no  Energy to do anything I’m just struggling so much and I don’t know how long I can hold on