Is this normal? Totally
Will it change on its own Probably
or should I take any steps to go back to a 'healthier' life?
There have been lots of threads over the years about this exact question. This does not detract from your personal experience of the Mustachian problem, nor do I mean to imply that it isn't important. It is.
Keep learning. Once you get over the first flush of excitement, there will still be lots to learn and adjust. You'll adjust to each life event, new job, rent vs. buy, etc. And it's good to relook at expenses from time to time and see if all seems correct, aligned with your values, etc.
Focus on the plan and how your job (the one you have or the one you get in the future) is important to the plan (ya gotta make the cash to stash). ETA: What I mean is, sometimes try to reframe and say, I'm going to be free thanks to the money I earn at this job. Even if it sucks big time.
Live your life frugally but joyfully. If you have cut back too hard and there's no fun anymore, you've cut back too much.
Step away from the non-optimal money shuffling. Schedule a time once a week, month, quarter, whatever and look then. Otherwise, don't look.