Staying motivated for leveling

Hi so i've been trying to level up so many characters but somehow i lost motivation.any tips for not losing motivation?

That depends on why you are losing motivation. If you just want to get them to 80 as quickly as possible, run them through dungeons with a geared 80 tank/plate, and multi-box the ones that can heal to heal your tank. If you enjoy questing, but are losing motivation because of its repetitiveness, you can try to level different characters in different zones, or purposely space out their levels a bit more. I generally let my alts sit for sometime to accumulate rested XP to the max before I play them. Raking in massive amount of XP per mob killed and watching the XP bar grow has always been my biggest motivator.

Avoid leveling in zones you already leveled in, as much as you can atleast.
Try leveling a character only through dungeons.
Don't forget to log out at inns for rested XP.
Keep checking AH every few levels, making sure to buy best items and then keep attacking enemy faction whenever you see it. Should bring some fun to the table.