Which instrument are you intending on memorizing songs? Should have asked this awhile ago. On keys one of the exercises that will help you in live performance situations is to practice inversions as you move from chord to chord. Memorizing the feel of what this is like in all of the keys is an important skill, in my opinion. How to walk around on bass as you do this also helps to become smooth and seasoned. And you must mix in the practice of playing in front of others, if your intent is playing out; which you have posted about for the past several years as something you want to do.

The first time is nerve wracking and you probably won’t even remember most of it. Second time the same. After awhile,you’ll recall what happened and can adjust. But this outside force of performing in front of people needs to be part of your routine. You will never be fully ready for it so don’t wait.