I remember doing that as well, once I found out such things as ticket gatchas exist (I have so many presents leftover now that I could potentially max out a new girl once I get one, though I prefer doing that step by step).
Unluckily, that was two days after I spent 50 gems on a premium gatcha which gave me exactly nothing interesting.
The strategy I went for after that is saving all my gems for 10+1 ticket pulls, which might change now that I actually got two golds out of 4 yolo priority pulls.
A word of advice - in about 4 days we should have the second stage of our current main event, which may possibly net you about 7 FGs if you get all the medals. The gatcha will still be up by then.