I was in the same boat and started drawing again at around 30.

Remember that paper is cheap and that experimentation is valuable. Make all the bad art you can. The cost of all the paper I wasted in the last 5 years is probably less than the cost of a pizza. There is a valuable life lesson in there about being okay with making mistakes so that you can learn from them.

Nowadays I always carry a notebook, and more often than not pens and watercolours. You can build a really tiny kit out of makeup palettes.

I also loved taking painting lessons and going to live nude drawing at one of my favourite pubs. Making art is such a pleasant disconnect from work and digital life.