Am I praying for too long?

When I’m praying, I find myself sometimes blanking out and needing some moments to remember my train of thought or to correct my wording. I have ADHD and often struggle with forgetting my next words. I usually pray for only a few minutes at a time. But I feel like I maybe I’m taking too long with moments of silence while I think. I’ve read before a verse about babbling during prayers. I’m afraid that I might be “annoying” or taking too long and my prayers being useless as a result. Often times my prayers are simply being thankful to the Lord and asking for forgiveness and strength and protection throughout my life for me and my close ones.