As A former user ( 10+ years using 8 years clean) I can tell you if you aren't quitting for yourself it doesn't work. I can also tell you It's very hard to stop, especially if you are deep in the lifestyle.
Meth is very ugly and difficult to get away from. I suggest you quit as soon as possible and I wish you luck.
I still have some of the mannerisms that came with all the tweekin years and I hate it!
Some of the Meth burns in to your brain it gets "Hardwired" .
I hate the time I was on it, the only thing good that came out of it is that I can recognize it right away and that allows me to keep my distance.
Good Luck.