Do You Use Half Your Movement to Get Up Before the Attack?

I'm so used to two people sent on my party, Jesus Christ. So you take, oh no, you're not gonna knock prone, because it's a trip, I might as well as try to do. As a reaction, it's a spite attack. We're having a big trip, so it's gonna be on the ground. You can use your movement to get back up if you want. Does it cancel the attack? I just did, or would it- The attack you just did would probably go to him,. Okay, so did it land then against him, or do I need to do- Did you roll again? I rolled 19 plus 10. Yeah, that