30 Years Old, Severe Overjet

I have always hated my teeth and it's greatly affected my self confidence but I was too embarrassed to speak to the dentist about fixing them incase they said they were too bad to do anything with. My dad gave me some money and then I saw an ad for 10% off invisilign and thought it's now or never. I emailed the dental surgery and was given an appointment for a couple of days later. The orthodontist explained what happens and gave me a booklet. I had some models taken of my teeth and was sent away to think about it. I went back and discussed it in further detail and saw the models. I had more precise models taken and a series of photo's and xrays. A week later, I was emailed a video simulation of the end results and was amazed!! I was told this may not be 100% accurate but anything close to this would be great! I went back to the dentist, discussed the video and payed a deposit and was told the retainers should be back from Mexico in 2 weeks. However, they were ready in a week. I went in and the dentist showed me how to fit them and take them out and gave me a goody bag full of cleaners, toothpaste etc. For 2 days I was in agony! They were so tight and uncomfortable. I tried painkillers, teething gel, sucking ice, cold water which all gave a little relief. I also got an ulcer on my tongue and was told to file down any sharp bits. After 2 days it eased and after about a week or so, I barely know they're in! You get in a routine too with oral hygiene and eating out gets easier. I'm a bit apprehensive about putting the next set in on Monday but I'm well stocked up with teething gel, pain killers,mouth wash etc and I know it'll ease after a couple of days!

Pros:
They really are barely noticable! Some people asked if I'd taken them out when I hadn't.
Can eat whatever you like.
Better oral hygiene.
Stops you from snacking and makes you drink more water!
My teeth are whiter from brushing so often.

Cons:
Pricey
Have to plan your meals and drinks so you can get to the bathroom quickly to clean your teeth.
Only got 2 hours a day off fron wearing them.
Ulcers and pain ... but it is short lived!
Possible "black triangle"
White buttons on teeth may be needed.
May need further retainers.

I'm due to change to set two tomorrow but have been quite worried about it due to the pain and discomfort experienced with set one. I decided to put them in today for an hour at a time every few hours to break them in but was completely surprised how comfortable they have been! Slightly tighter than set one at the end of the two weeks but barely noticeable!