These pelvic floor exercises seem to work for some but not others. I too was doing Kegels improperly - clenching my anal sphincter instead of bladder.
However, none of the exercises I found online helped nearly as much as the best Kegel of all: stopping your urine flow, and then restarting at say, 7-10 second intervals. You CANNOT do this wrong as there is only one way to do it - the way you’ve done it all your life.
It helps to have a full or nearly full bladder (if you can) so you can have 3 or 4 urine stoppages. It worked for me.