Wolverine stack for beginners.

Don't. There's no telling what would actually be going into the body.

The previous commenter has direct experience that makes her input especially relevant. Spending time in this forum to learn safer approaches would be worthwhile for everyone's protection. Other references exist too, but beginning here makes sense given the knowledge available.

Getting a preloaded syringe from someone at the gym feels too uncertain. I would rather try bottles of nasal spray found through a search than trust something prepared by another person for injection.

The suggestions so far are sound. If it were my situation I would look for established sources that provide independent testing results, at least initially. Ordering directly and skipping the mixing step allows better control over amounts. For my own injury I used one compound daily along with another daily, while the third was used every other day, and the amounts differed. The outcome was very good. I would suggest trying this route for any ongoing injury.

Get the separate parts instead. I use half a milligram of each on weekdays. Using it every day might work better, but I prefer having a couple of days without injections.