I don't regret doing it but I am glad I don't do it anymore. There was while back where I done it alot, but I'm over it now and I'm glad to have my normal life back and spend time on weekends doing normal constructive things with my girl friend.
Look taking meth isn't that bad, but if you feel like your the type to get addicted to it then stay away because normally I am not that easily influenced, but when I had this I have to say it was the hardest to stay away from.
Good points about meth: It mkes you alert, you can do anything on it and it's not that obvious that you have taken something. It hits hard when smoked, and makes you feel nice in the head and body. It's pretty cheap, $40 for a point does me for that night.
Bad points: You'll kill your lungs (if smoked) in a big way, it'll only last a few hours until you feel like you need more but when you have it it wont do a hell of alot but keep you awake, when your trying to get to sleep it's enough to make you go mad, cause no matter what you do you can't switch off. It will effect your work and life, cause you'll be either coming down for a few days for be thinking about it 24/7.
My advice? Stick to the pills, give it 2 years then you'll be over them and you'll start drinking again and become a normal citizen. Meth will set you back a year or 2 in your life, maybe cut 10 years off your life span, who knows.