Relationship/life advice

So long story short i broke up with my 1 year and 8 month relationship with my bf because i simply because i lost feelings for him. It’s been some time, and i’ve been keeping myself very busy and don’t leave myself time to dwell and think about him. I don’t even think about him tbh because i feel i’ll be upset. I’m used to always having someone there 24/7, and now i have nobody. I miss having a boyfriend. Am i wrong for not wanting to think of him? What do i do with myself ?