June fear already bubbling up

I have a fantasy of being a botanical artist working in water colors. But I have no idea how to paint. I’ve tried to learn a few times in the past but I’ve always given up – I think because I wasn’t very good right off the bat and I preferred the fantasy of the whole thing rather than committing 100% to being a beginner and learning and practicing. I have a class picked out. I have the supplies in an online shopping basket. And I’m terrified/excited. My mind has a million objections. The main one is – what about your goal of losing weight, what about the urge jar? Perhaps learning to paint can be the pleasure in my life that replaces food and wine. What do you think?