Ancillaries cost a lot. Juice is the cheapest part of a steroid cycle.
You gotta buy all that pct stuff (ZMA, herbs, clomid, nolva, et c), and protein powder, vitamins, lycopene for your prostate, minoxidil if your're MPB prone. There's a lot more than just juice
How's the sides so far? 2.5g/wk is a hefty first cycle. You'll live, but you might wanna cut back on the dose to 1g or less and continue to taper down. Ideally, you don't want huge fluctuations in hormone level. Consider your fuckup a big frontload
You need to take care of your health. You should also try to take advantage of your mistake (gain some muscle from the high dose).
Drink a lot of water. at least 2 gallons per day. Stretch well, take care of your health (eat veggies, sleep, clean your skin well). Eat a lot of protein. at least 300g with that amount of gear. Let the test do it's work by giving it what it needs.
Go to spotinjections.com to find some new injection sites and don't inject into your ass for at least 1 week.