I think i broke rear main bearing

Don’t run it the way you “fixed” it. That is going to vibrate out and it will probably suck air in and you will lose oil pressure. The no screwing around right way is a new cap and line hone. Which requires engine removal. Are there fixes that could work? Yes. On an inexpensive motor, I kinda liked the drill the hole a 1/2 deeper, thread it and I would epoxy a stud in it. If I fixed it that way a clock would be ticking in my head.