> what would you tell someone a bit further along in their career who still has the same problems?
If it's a relatively new thing, you might be going through a little burnout. I've been there a few times.
The first time it happened to me, I almost "fell out of it" by accident. My day job was in a bit of a lull at the time and I just decided one day that I'd had it with a lacking feature in Visual Studio and decided to sit down and figure out how to write an add-on shortly after waking up on Saturday. I ended up completing a really basic version that day -- enough that I knew I could do the rest of it, which I continued to work on for about a month until I released it.
I did this all during a handful of free evening hours during the week, but I checked my download counts regularly and was giddy every time they went up. I can't tell you when the burn-out ended -- probably that following Tuesday -- but any time I start to feel that way, again, I look at what I'm working on that I'm really excited about and I often find that there's nothing there. So I look for something new, usually not day-job related, with the goal of it being "far enough outside of my wheelhouse as to require a decent amount of new learning" and "not terribly difficult to do once that learning is over" because if I can't quickly get to a working "something" on a project like this before I close the IDE, I'm unlikely to revisit it. Ideally, that new learning leads to some new things to work on at the day job, too.
[0] Friends are often not the best unless you have a friend who is not afraid to insult you/the "hard truths". I've had a very close friend for most of my adult life that has been willing to say "You're being stupid/evil/what-have-you" when it was necessary.