Leveling past level 30

[neizero]

I can only do the guild leves on 1 star the level 30 ones. I barely can do them I almost die every time, anything above 1 star won't work

At R30 you should be able to solo R30 leves at 2-star at a minimum, are you equipping abilities from other classes to help you? ie Second Wind, Bloodbath, Cure, Shock Spikes, you can get all of those with Pugilist/Marauder/Conjurer to around level 6

Also! Do your leves in gridania region, they give more SP and are generally easier