omg u have nothing to complain about. I'd take 7 lixes per lvl at 145 ANY day.
lol at ur lvl i was able to do levels in 1-2 elixs thats how easy it was and i usally solo or lvl with 1 other person to get the best exp possible you dont know how time consuming and plat items per lvl it take. once4 u hit 140 tell me if u like duel training 3-4 hour a day and using 30-50 idols without restos or 100 restos+ a training session.
All what allyme said and to add on it, im a not a plat buyer. I completely depend on in game gold for elixirs. That means if i want 50 elixirs, i'll have to spend 200k which could be spent on other things like items needed for dragonlord or lux or new armor. So yes, using 7-8 elixirs IS a big deal for me