Dating already

I just ended a 8 month off and on relationship and I have felt emotionally drained from it for the past month. I blocked him so I wouldn’t want to go back and I downloaded tinder to kinda make myself feel better. Is it wrong if I go on a date with someone? I’m only 18 and I’m not seriously looking but I feel like it could help me (btw my last relationship was really toxic) am I a horrible person??