I’m new at work and my coworkers are making things difficult for me. What should I do?

I’m new at work and my coworkers are making things confusing on purpose (or at least it feels that way).

If I push back, they stop helping me or giving instructions. If I just follow them, I end up doing work that feels like it’s for them, not my actual job.

What should I do in this situation? Fight or tolerate until I don't need their 'help' anymore?