Absolutely. Always be open to changing jobs if you need to, and always keep that option as a back up plan even if things are going well. Know that if you find a new job it may fix some things while introducing new problems, there is always some risk to doing so. If you aren’t in a rush to get out try to line something up that makes the change worthwhile - get a promotion out of it, or at least some pay raise or other benefit. Often times annual raises suck enough that many people need to get a new job to find a decent pay bump anyway, so it’s good to be looking for that. If you haven’t interviewed in awhile line a few up as practice too, so when you find something you’re more serious about it will go smoothly.