im some how stuck on the rainbow badge somehow and i cant find any ways to get good xp best i get it around 250-300 xp from each pokemon i defeat its taking me all day just to level one pokemon to 35 it took me 8hours idk what im doin wrong

 

Hello there, thanks for creating this thread. in PRO there are many ways to Level UP your Pokemons, and one of the ways is to defeat other wild Pokemons, which you are currently doing; however, this is not the most effective way. A common way to Level UP is to defeat the NPC Trainers throughout the region you are in, Copycats which are located near the Gyms and battling Gym Leaders you already defeated, they give higher exp than your current strategy, note that there is a cooldown for each of these methods. 

 

Players often advise to focus on Levelling 2 to 3 key Pokemons to complete the region, the most common being Gyarados, which you have, rather than the entire team, so it will require less time.

 

Moreover, Trainer Tower is another method which can be used to Level UP faster, however this is not accessable for you yet as its in Route 13 and you will need to obtain the Rainbow badge first. I have attached a guide which is extremely helpful to find out how this mechanism works.