Is it okay to get inspirations from Pinterest or get resources from there?

If you mean resources like downloading textures and stuff I would avoid that as much as possible unless you are ok not crediting/stealing which if you are asking this question you probably aren't. Most people repost stuff from other creators there for clicks. References are fine, I see so many pictures f the same five girls drawn over and over again though so it does get kind of boring, I would say go deeper down the rabbit hole to avoid doing the same thing as everyone else.