I have had moderate to severe acne all throughout my teenage years. It is finally more or less under control after addressing hormonal issues but Im left with these WEIRD icepick scars. They are very small but seem quite deep and are extremely close together, forming these lines on my forehead.

Ive had 6 rounds of microneedling and I think its made my skin look better but its not improving these scars like I had hoped.

Here is my current plan, unless Im advised against it:

Im going to do TCA cross at home. I know its risky but Im going to test one individual scar (an isolated one on my temple, not one of the connected ones) first to make sure my skin reacts the way I hope. I read advice against treating multiple scars that are close together at the same time because it can connect them. Mine ALREADY appear connected, so Im obviously going to heed this warning and treat them in separate sessions.

I have 2 microneedling sessions left, which I think I am going to save until after I have done TCA cross because maybe itll be more effective if my scars are a little more raised.

Does this sound like a reasonable plan? I ordered 25% and 70% TCA, planning to start with 25% (which I realize may be too low for cross but Im being super cautious here) and then if my skin responds ok, gradually mix them until Im at 70 and then go higher if necessary. Maybe I can use the 25% diluted with water for a peel after cross as well?