It is indeed that I need to install the CWM.
But I found it to complicated. And you need to install/ alot lf stuff. This all so I can install Speedy Droid.
So I found in the play goolge and app called System App Remover and now I can uninstall Bloatware, other apk,... And it keeps it in a recycling bin, so if you deleted something you shouldn't, ypu can recover it.
And if you finally wants it to be removed, you can just delete it.
So I used the list of speedy droid, to see which apps. I could delete and just deleted it with this app.
i am not sure if finally it is worth to install CWM, but for now I am fine.
If there are cool stuff which I need CWM, please tell me. Because then I will install it also.
For now I am happy. i have around 125MB free memory and the phone runs smooth!!