Since you haven't done it yet I would think long and hard before you use meth. You have time to read all of the meth posts here on BL and if you still want to try it after reading of the misery that meth creates then that's fair. At least you were forewarned.
Sure hope we don't start getting posts from you that mirror all of the anguish and heartache that meth caused a few months from now( after your one time fun time ) . There is no one time and done time with meth. You think there is now because you haven't done it yet.
Your friend that is supplying it to you wants you to be as miserable as they are. I know you think that this will just be a one off but it won't. You are going to like it, A LOT, and you will want more. I know you don't think that is true but it is.
You have time. Don't load that gun. Tell your friend to fuck off that you have changed your mind. Be glad that you have adderall and it still gets you there because it won't do shit once you get a taste of meth.
If you do decide to jump into the depths of hell I hope your comedown isn't too bad. But it will be.
Thinking you will eat and drink on it so you are a healthy meth user is commendable, but you aren't going to eat or drink anything. You'll see.
Read up please. You are still in control here. Don't be like the hundreds of people on here who would sell their soul to be you.