Hi
@Chromeautofill
I can certainly relate to your story - prior to diagnosis I was consuming vast quantities of sugary and carb laden products. I could easily get through a multi-pack of crisps and a multi-pack of chocolate in a day, sometimes with a large pack of Haribo thrown in. I knew it wasn't doing me any good, but was stuck in a vicious cycle of eating rubbish, feeling sluggish and getting more and more sedentary. Not pretty.
The diagnosis of type 2 was the kick up the proverbial that I needed to get serious about my health - as others have said, it really is down to you and your mindset.
In terms of practical advice, I'm going to tell you what I've done - but you need to find your own way. For food I went "cold turkey" - threw out all the bad stuff and went very low carb. For me, the easiest way to avoid eating something is not having it in the cupboard/fridge. Was hard at first - withdrawal symptoms of headaches and feeling hungry. But I persevered and after a while it gets easier - now my appetite is much smaller and I no longer crave sugar and carbs. That's not to say I don't fancy them if I see them, but I don't actively crave them, which make them much easier to decline in social settings.
For exercise I took a slower approach. I use public transport to get to work so was already doing a low level of exercise. I bought a pedometer to understand the base level - on a normal working day I was at about 6,000 steps. I started looking for small opportunities to increase that - going for short (10 minutes - so achievable in a busy day) walks in the lunch hour. Over time I've started getting off the train a stop earlier in the morning and then going back to that station in the evening. The endorphins from exercise make it quite addictive so it was easy then to start doing even more - going the long way round, going further at lunch time, even going for a walk before leaving for work if up very early (which I often am).
I guess what I'm saying is that even in a very busy schedule there are small steps you can take which will make a difference and help you to make bigger changes, but it's all about mindset. You have to want to do it - and coming here for advice suggests you do - and you need to identify the things that will fit into your schedule.
I wish you the best of luck.