Benzelsanswered grow question 3 years ago 26C isnt hot. Its perfect. And yeah, you been feeding too much nitrogen. In fact Id feed just water for a week and go back to weaker flower/bloom nutes after that.
Im not sure what u mean, by is has stayed between 7-10 degrees since then. If you mean your room has been 7-10 degrees thats WAY too cold and why your flowers are taking so long.
Your room shouldnt be cooler than 19C and not warmer than 30C ok. As long as its in that range it doesnt really matter where- even at 19C u can grow a crop the whole way throu, slowly but no probs. Below that plants grow so slowly its a waste of electricity running lights and fans for minimal growth.
Get your temps up to where they need to be and your yield will be higher than what ur looking at now.