Just do the thing. Its.simple, but it's not easy. Procrastination is an anxious response, so ask yourself what are you anxious about that .along you avoidant, and while you're thinking about that, just do the task.

I was going to stop procrastinating tomorrow.

But seriously, my best tip is just start the thing you have to do. It's as simple as that, instead of thinking about it, or planning it, or trying to figure out how to stop procrastinating, just take action and do the thing.