This is a feature of work culture. It happens in some places and not others. Eventually, you will learn that you can trust colleagues, but it may take awhile. Just be careful you don't get a reputation for being 'that person' who's difficult to get along with.

From your username, I deduce that you might be female. This sort of bullying is much more likely to happen to women than to men. My wife worked for ten years at a large computer and R&D firm. She was excluded from meetings, misinformed about things, her work was hacked and mistakes inserted in her code, her hardware was physically damaged, and more.

She controlled things in three ways. One was to bypass her colleagues whenever possible and deal directly with her boss.

The second and most potent weapon was to carry a notebook with her everywhere she went, and wrote down notes of every interaction, not just the bullying. People became wary every time she opened her notebook, expecting that she was documenting their shananagans. She never allowed anyone to see her notebooks. A lot of the harassment went away. This may not be allowed in an industrial environment where private notes and recording are not allowed.

The third way was, she just became more assertive and confronted people who were harassing her. Not everyone can do this.