u/Calm-Suggestion-4677

I hit 50 for the first time yesterday, I have been speccing in to shadow (using this guide https://www.icy-veins.com/tbc-classic/shadow-priest-leveling-guide) so pretty much being dps while questing and doing stuff solo or in small groups. but when going in to dungeons I’ve always queued as healer, and more recently have started switching out gear for more intellect/spirit whenever I go in to heal a dungeon.

when should I switch over to start queuing as dps and actually using my vampiric touch / embrace?