Retatrutide Tips

Guys, so I have 4 vials of 15 MG and I was wondering if you can share some tips. I have questions as well such as: How much bac water would I put in a 15 mg vial? Should I go on ahead and put bac water in all of them or should I go one at a time? Do I store them in a refrigerator or can I leave them on a dresser or counter? What’s a good starting dose? I’m 24 years old and my weight is 314 pounds. I was thinking 1 mg every 5 days.