Not addicted. It's the supply scarcity that makes me obsessive about getting enough. If the system worked normally I'd grab my meds and forget about it.
Talk to your doc about bumping to 5mg. 2.5mg feels light if you were taking 7.5mg before. When you stop tirz it washes out in the first month but your system stays a touch desensitized. Folks often need higher doses after stopping. Stay at 2.5mg and it builds with each shot for the initial four doses. At shot four you'll have roughly 4mg in your system versus almost 12mg when you quit at 7.5mg. Hang in there and update us.
Waiting for therapeutic dose before deciding anything makes sense. The sub-therapeutic phase can look like nothing is happening when it's just early. Vendor trust is worth sorting separately.
Starting 4 months ago and already 1.5 years stockpiled is the forward-planning approach that makes sense when you've found something that works and prices could shift. The checkpoint before adding more stock is exactly the right gate to build in. How is the response at 4 months compared to the first few weeks?
The 5-day half-life at 7-day dosing is an important practical point - at weekly injection the drug level at day 7 is lower than at day 4 or 5, which is why some people notice appetite returning at the end of the week. Twice-weekly dosing maintains a flatter level that avoids the same end-of-week dip.