That's fantastic progress Ricky! What's your routine been like? Sorry if you're repeating!
No worries repeating it, will keep it short but just shout if you want more detail. I started all changes in early November, weighed in at 93-94kg (I was about 90kg in the first progress photos above).
Diet changes were the simplest, I cut out all the really bad stuff (pork scratchings, crisps, pies, most sweets, etc), I reduced my portion size to sensible amounts which meant I felt hungry for about a week or two but that passed and I still ate well. I didn't count calories as I felt the time was better spent exercising and I knew what was good/bad food. I made a point of eating more veg and drank a lot of water and tea, both of these fill you up so you have less room for stuff that's more calorie-laden.
In terms of exercise:
November - 45-60 minutes every day (including weekends), this was mostly cross-training with some cycling, I did some dumbbell curls but that was a waste and I wouldn't bother doing that if I had to do this again since a proper weight routine works better (see later notes)
December - 45-60 minutes every day, again mostly cross-training with a bit more cycling and running on a treadmill for 5-10 minutes.
January - 45-60 minutes every day, 10-15 minutes on the treadmill first and the rest cross-training and cycling.
February - 45-60 minutes every other day doing cardio in the gym, started running outside on the other days, initially doing only 1-2km, working up to about 5km.
March - Decided in a moment of madness to run a half marathon in June so changed my routine to 5km run on Tuesday, quicker 5km run on Thursday and a slower 6-7km run on Sunday. Increased distance slowly each week. I went to the gym for light cardio on Monday/Wednesday/Friday, mostly doing cycling and started doing some push-ups and trying chin-ups (pull-ups not possible!)
April-May - Same routine as above, increased distances until I was running about 30km per week and also managed to do 10+ chin-ups at a time and a few pull-ups (but not in any elegant way).
June - Ran half marathon in 1:54, very pleased! Took a week off to let my body recover, my feet in particular were quite unhappy. Decided to start Stronglifts 5x5 program on Mon/Wed/Fri and do cardio at gym on Tues/Thurs/Sat.
July - Same as above, I'm doing some short (5km) runs on the cardio days as well as some cycling/rowing (machine) and working through Stronglifts still
Things that have helped me:
Using tracking tools for my weight in the first 4-5 months really helped, when you're fat it's hard to see a difference as you still don't like your appearance even if it's better than it was when you were even fatter. I set minor goals, working on losing 2kg at a time.
Listening to audiobooks when exercising, I found this much more interesting than listening to music and on long runs it makes the time fly by.
Set a routine and stick to it, the first few weeks I knew I would have excuse after excuse lined up so I set reminders on my phone ('Get to the gym you fat git') and told my missus she had permission to nag me until I left the house.
Running has been the key thing for me as I have gone from hating it to loving it, I enjoyed every minute of the half marathon and I love getting out in the fresh air and not thinking about work or any other issues, for me it is a chance to unwind.
It's hard for me to overstate just how much better I feel and the difference it's made to my happiness. I set out to make sustainable changes, to lose weight but more importantly to get healthy and for me it was exercise that drove the process. Don't get me wrong, if you eat badly then exercise won't lose you weight but it was exercise that made me more determined to eat well whereas eating well didn't make me determined to exercise.
Anyway, there's a lot of ramble above but short version - make a sensible long term plan and ensure you stick to it. If you can't see yourself still doing it in 3/6 months then you'll be back where you started in 12 months.