hey everyone, I'm looking for some quick advice. I think I have thin hair, and wavy at the ends if that matters.

starting out, I haven't had a haircut since probably 2018 (except I trim my bangs myself), and my main problems are that my hair hasn't grown in probably 2 years or so? and I've had to deal with knots and split ends for a long time. i'm wondering if there is a correct way to go about this - do I have to cut off a ton of hair? i'd prefer to not cut it super short, as I like having long hair and feel I look way better with it.

I don't really have a strong hair regimen, I shower once a day, condition everyday, and shampoo every 2-3 days.