Have you been busy with other things? Children, spouse, career, houses, gardens, etc?
Art is so unique, and not easily replaced with anything else. You have that desire to be creative, in any form it takes. It also enables you to escape a little bit, into your mind, your imagination, your loves. I think it’s necessary to put yourself first. There are ideas swimming around in there, if you can just access them. And silence the critics. You can’t be both the critic and the artist. The joy of painting is its own reward. It will take time to find what really engages you, and you will need to try to paint/sculpt/draw frequently. Then you can start to see the path forward. Starting is hard, but not not starting is worse.