Hi, welcome to the forum.
I’m type 2 and I have been on insulin for a year. It is quite scary at first just thinking about it, but it gets easier in quite a short time.
To begin with I expect you will double check everything before each injection. Before too long it becomes automatic.
I expect your nurse has started you on a low dose, and it’s not unusual to need to increase that dose slowly over time. Sounds like your nurse will be a great helping with that.
Some practical suggestions.
Make sure you always have hypo treatment on you just in case. I carry tubes of fruit pastilles for a quick fix as they fit in a pocket, or bag. Also I find packs of two biscuits easy to provide a longer blood sugar boost.
I set a repeat alarm on my phone to remind me to take the insulin, if I’ve cancelled the alarm I know I’ve injected!
You need to test before you drive. Must not start to drive if you are below 5. If you use a blood sugar meter you must have it with you when driving, if you use a CGM have your phone or reader with you. If you have a hypo stop driving and move out of the driving seat. You must notify dvla once you go on insulin. There’s a form you can fill in online. As long as you haven’t needed anyone’s help to deal with a hypo, and you have hypo awareness you should keep your car licence but you will need to renew every three years.
Any other questions you have just ask.