How can I overcome this?

For a long time now I've been having problems with facing my fears and I have become too scared and sensitive. I've started to hang around with my cousin who has many problems of her own and as we are VERY close, she shares them all with me.
As this is normally the only thing we talk about I've started to become really negative and i have started to think about the worst possible outcomes. I cannot stop myself from thinking like that because one time all the things i was thinking about(negatively) came true...
Now I am always scared about bad things happening, which brings down my confidence, which has resulted in me isolating myself. I have tried talking to people but my best friend has gone on holiday and my cousin already had problems so I dont want to be a burden on her...😭 Please help me...I feel so hopeless these days..and sorry if this is a bit long😕

Hey wat are u scared of? like can u be a little more specific or give a few examples? Im sorry..im not able to understand wat ur actual problem is..so if u dont mind..plz elaborate..thnk u.

Basically I'm scared of anything...Not one thing in particular but the worst possible outcome in any situation.

Example~:
I went to a place with my cousins without telling her parents because she's not allowed to go there because of her past. I kept thinking that her parents would find out and they did ad we got into a lot of trouble.

If you need alittle bit more clearing up please say so, sorry if im unclear

All you need to do is tlk to ur cousin abt how you feel i know shes having problems of her own right now..but she needs to understand tht your are scared.....and dont do anything tht ur suppose to like going wit her to sum place tht she wasnt suppose go to....obv your gnna feel neg abt the whole situtation....

I think u really need to get out more often. If u get scared just like that it means that ur body isnt use to being in the "outside world".

i think ur basically scared of doing things..becuz u mite come from a very strict family. Ur afraid ur gonna get caught even if ur not doing anything wrong. Anyways, um u shudn't do things ur not suppose to do though. Like da example u gave above..obviously dat was normal to think like dat..like u'll get caught n den really did find out. It's all normal. Also...try to be positive. live life like ders no tomorrow...but just make sure u dont do da wrong things..be on da right path. Another thing...knw ur limits. When parents or elders get mad..its normal...they have da right to. So dont get soo offended n dont be soo scared of them. jus try to do things dat will gain their trust...n try to change dat situation..of dem getting mad..if they do. when dey get mad...be nice..dont give dem attitude..if u do give attitude...ok? i dont knw if i made sense or if i helped at all! hope i did! take care..:)

Thank you for all your answers..Yeah i come from a strict family..but thats one of the first times i've done anything wrong..we know to never do it again😆 i'll try to get out some more..but i hate going out of the house! i would never speak against my parents though and i know they always want the best for me so i dont mind if they tell me of to protect me..

thank you once again🤗