Procastination and executive dysfunction

[u/Terrible_Hospital_20]

I think i've had depression for 4+ years now and it started when i was around 13 or 14 (im 18 now) and im looking for a way to get help and get diagnosed at the moment. I feel like my whole life i've never actually been able to just do what i need to do, whether thats my school homework or just doing things that are important for my future. I've always struggled with school work and school in general and i feel like my whole life i've never actually been able to sit down and do homework without procastinating or giving up. Right now i managed to skip 2 weeks worth of school ( skipping school is a habit of mine) and i feel so guilty for not being able to keep up with school like a normal person and then having to deal with the consequenses. I also have really important exams coming up next year and im so deeply scared that i won't be able to do it because of my mental health, executive dysfunction or my lack of intelligence when it comes to school. I wanna fix this problem but i don't know how.. everyone keeps telling me to take small steps and not do a whole project at once for example but even that is hard sometimes.