I think we all go through times when we have decent results, feel fine, and start to get a bit complacent - so good for you in deciding to get to grips with things! You've already shown that you can achieve it, your 36.2 (which I'm presuming is an HbA1c result, equivalent to 5.5%) was excellent, as was your weight loss, so you probably already know how much better you feel when you look after yourself properly 🙂
Exercise can really help, not just with blood sugar levels but also in making you feel much better about yourself, so if you can get in some regular activity that would be a big help. Setting a goal so you can have something to work towards would really help keep you motivated, and if you decide on one and tell us what it is we will hold you to it! 🙂