Vaginal discharge all the time- why??

Hi I'm a 15 year old girl- I got my first period in the beginning of 8th grade (now it's been over 2 years since) and recently I notice that there's ale=ways discharge in my underwear.

I have no symptoms for STD's Yeast Infection and any other infections/bacteria. I shower every day and keep it clean as often as possible.

For the past, at least, 6 months I notice that whenever I don't have my period I always release discharge. I don't know what a "fishy" smell is and I know that's bad, but mine has a significant odor and I always smell it. Sometimes I'm too scared to even open my legs just a little but in case my friends will smell it too.

Why do I have it everyday? I'm not sexually aroused because I feel it release from my body when I'm in school and thinking about anything other then sex, etc. Can it stop? Is it a fase?

I remember I used to get discharge for a week the week before my period, but now its before and after and always and I really hate it.

Thanks for reading and helping me :) and my mom is notified and will ask my (female) doctor about it too.

I know it supposed to be normal to have discharge but I feel it isn't when it's all the time.