Kegel??

So after having baby i have noticed that my pelvic floor is alot weaker. I cant hold it as easily if I need to go toilet now. I cant even jump on a trampoline once without peeing a little. Im 31. For those who do kegels, do you find that it helps??? Do you use a ball or tool or nothing?? The holding your pee when you dont need to pee doesnt exactly help for me. Any tips?? I want to TTC #2 but now that Ive noticed my weakness Im scared that it will just get worse if I have another baby now. My lo is 15mnths.