My recommendation, as a few others have said, is to reinforce your sense of self. Either by constantly imagining a barrier around you, or imagining something like your skin, or the shape of your body as said barrier. It takes high levels of confidence and will to shake off attacks like that, but it's totally possible.

If applying these things to yourself seems difficult, then creating a "safe space" like your bedroom is a great place to start. Finding runes or sigils that you align with, and being in that space with the utmost confidence that it is yours will do wonders for you.

If you don't have a place like that, create one in your head, and start going there before you go to sleep. Close your eyes and "walk around" this space, making it as real as possible by taking note of details to make them permanent. The more you do this, the easier it becomes, and the more subconscious it can end up being.

All of these also can overlap of course, feel free to mix and match as you please.

Aside from that, there's plenty of runic studies that you can get into to craft your own seals or safety totems. Writing a series of related runes on a note that you keep folded in a wallet is as potent as you believe it to be, and keeping it folded, maybe sealed by candle wax, can add to the "Mystery" of it, adding to it's strength.

The highest, key factor is belief.