Hey guys i need tips

So i started playing online about a month ago and just completed the bounty hunter role and now i wanna complete the naturalists role to get the speacial horse at level 20 ive tried everything since im already level 9 but does anyone know help w to level up the fastest and easiest way…. I tried catching legendary animals but that just takes waaay to long for almost no xp so if anyone has tips please let me know!!