My life is falling apart. Thinking of seeing a therapist.

My life has been on a downward spiral since my parents got divorced last year. Now I’m falling behind from my studies, my dad is never around when I need him, and my brother has been too preoccupied with all the international brides dating events he’s been going to. I feel alienated from my friends at school and I have no one to talk to. I don’t want to go to the school guidance counselor, so I was thinking of scheduling an appointment with a therapist. Should I go for it? I want to make sure it’s going to be worth it.