Missing him

So my ex and I broke up this morning and I honestly believe that it was mainly because the relationship was pretty damaged. I had deep feelings for him tho and I miss him a lot already. It wasn’t toxic or anything but I know that we would be better off separated then together. But anyways how do I get over him or should I text him? We had stopped talking and started up again before and this time we were way more serious but I feel kinda dumb for wanting to go back. Sorry for the rant but any advice or suggestions?