Yes, as someone who got type 1 diabetes as a 30 year old, some 16 years ago now, I can confidently say that getting back to normal does happen. In fact, I was doing a really boring job (travel agency) when I started on insulin, which I resigned from, and spent a few months doing not very much, apart from visiting friends (all of whom lived at least 100 miles from where I was staying with my parents, as I'd just returned with diagnosis, after a year working overseas), fell walking, spending Christmas with my uncle & aunt on their small holding in Brittany, travelling in Belgium with a friend etc. By that stage, I knew I had a funded place on an MSc course, and things began to improve once life got more interesting. Since then. I've had plenty more interesting jobs all over UK, plus got more involved in orienteering, mountain marathons, adventure racing, kayking and duck keeping than I ever was befroe diagnosis, partly because of settling down with a partner and house.
I quickly worked out some simple strategies for me eg a pencil case containing pen, spare cartridges, spare needles etc and another meter pouch to carry everywhere, plus worked out what emergency food is cheapest / easiest / most convenient to keep in rucksack pocket / handbag if you use one etc. So, you'll find solutions that suit you and your life.