Go for it! You'll have a blast once you get going

It helps if you set off one day a week or so to do those small errands (or just shop less, that's what I end up doing ), and plan accordingly, whether it's taking a bus that day or just schlepping a somewhat larger backpack. Lay out everything you'll need the night before, but don't pack it until the next morning, or you'll be second-guessing yourself all the way in.

It sounds like a lovely commute. You'll be wondering how you managed without. Lock your bike well, preferably a different place every day, remove any expensive lights, and just reckon that there is a small chance it will get stolen. Worrying is a waste of effort in the long run.

Take pictures, have fun