[Closed] removal of bearings ?

Hi Guys

just need some advice please.
im changing my bearings on my full suss (canyon nerve am)which i havent done before, but thought id save a few quid and have a go.

anyways was going okay until....ive been tapping the new cartridge bearing in by using the old bearing on top of that then using a rubber mallet, tapping them in. slow but was doing the job. then on the rocker arm i kind of hit it to hard and the new bearing as well as the old kind of both went into the slot 😯 !
ive spent the last 3 days trying to get it out by tapping the other side (onto the new bearing) to get the old one back out. it aint budging at all. im now stressed at have gave up.

is there a way of getting it out. does it mean i need to buy a tool to get this out ? which i dont mind or is there a homemade fix i can do.
i no nowt about bearings or tools but dont mind having a go.
the number on the bearings are 5626rs.
ive looked at superstars range of bearing removal but i havent a clue what im buying.
any advice would be great.

cheers guys

gaz