You are doing fantastic, and you were very smart to give away the wrist bands. You made two friends really happy, and protected your sobriety, definitely a win-win.
It is normal to feel tired and out of sorts the first few weeks, I started to feel better around one month, and continued to feel better each month after.
Sounds like you have a nice weekend planned, and I think it's great that y have opened up to your BIL.
Keep up the great work, and keep posting about how you are feeling.