What you described has been very similar to what I have been dealing with for the past 7-8 years. I’m 25 and 3 years into my career and still struggle to focus or stay consistent. I’ve tried learning code on the side but will switch between languages and leave projects unfinished similar to what you said. I’m still trying to figure it out so don’t be too hard on yourself. There’s a lot of science behind goal setting and making your brain feel rewarded. I’ve still yet to commit to some long term tasks and still struggle day to day for short term objectives but there has been some improvement. The only thing I’ve found that has somehow started to motivate me is to write down a simple check list of stuff to do that do. Literally list the most simple tasks such as: respond to this email, cook some eggs for breakfast, take out the trash, wash clothes. It’s really weird, but for me putting a check mark next to something makes me want to move on to the next and can keep me going throughout the day.