that is a perfectly fine solution
WoW Classic was never going to satiate the apatite of someone who wants a new phase every 5-6 weeks. Find other things you enjoy in game or outside or in another game/gaming venue in-between your TBC raids.
not meant to be a dig there is a ton of really good games right now, try them out WoW and especially classic is not going to be a 24hr content reel.