I need help with my story please?

I do have some suggestions and in my 23 years as a writing professor, I decided that if, in a story, a character had motives to kill another character, those motives would usually fall into one of three categories. The first category is insanity which is pretty basic. Mainly serial killers use insanity as a motive. The second is jealousy, usually caused by fame or fortune. The final, and best, one is revenge. I would use this. Maybe the person trying to kill her is the reason she is homeless. Maybe she ran away from him. Maybe she killed his lover because she knew the lover was a spy but cannot tell anyone. And the person after her is now crazy from chasing this elusive main character. Or you don't even have to say spy, but dead lover is good.

why don't you just leave out the 'why' part, and leave it more mysterious for the reader, it can be like a thriller for the reader to read and find out, I"m sure when you're not thinking about why the people are after her, you will find an idea, or just pick one of your ideas and use it until you think of something else, by the way it sounds like a good story

Bcuz they killed her nephew so she hooked a bomb up to their secret hide out and blew half of it up