Nope. First I’m assuming by your question you have no tolerance. 10-20mg is a starting dose for someone with zero tolerance. My first time I did 40mg and highly regretted it, actually that kept me away from opiates for a few years so maybe it was a good thing.
Next you gotta know many fake oxy presses out there these days that contain fentanyl. Just one can kill you.
I’d start with a quarter (7.5mg) and work up from there...
-GC