You should NOT go by what someone else says you can tolerate.

It could end up being fatal for you.
At one time I used to take thirty 30mg Roxies daily. I would typically take 6-7 30mg each time I dosed throughout the day. But my heart also stopped two different times.
Taking 60mg
oxycodone four times a day is serious. Be very careful and I hope you're under the care of a dr. God bless.