Ashton holed-up as much as he could during the past couple of days.
He always made sure that if he's going to move, he will do it during daytime and without being detected by Demons. He isn't in any hurry to confront them, he's too weak and inexperienced to deal with them anyway. Plus, his curse wasn't helping him at all.
He doesn't have any powerful offensive spells that he can use to fight with. Sure he can level up Spells higher than his cultivation but since all he had are Basic Spells, there really isn't much he can do with them.
Ashton would know. After all, he tried them within the Simulation Zone and barely worked.
Realistically, all he could do right now is to gather enough experience and increase his strength through cultivation. Even though he's avoiding confrontation against demons, with the help of the Simulation Zone, he can collect experience.