Reality Check

I usually just play retail to have fun and kill some time, I generally just sit at like tier 8 delves as like the maximum tier of difficult content I really bother with.

I was talking to a friend of mine who basically said flat out that I should be pushing higher content because at this point, 604 is really low to keep progressing with, even with the stuff I keep doing.

What or where should I be going onto next? I know mythics and raids can be done at some levels but, from what I gather, it's ridiculous to get into mythics and raids as a dps.

I asked my friend to get me a spot in a raid and he said we don't do normals anymore.