it could be several things going wrong. your technique has a lot to do with how well a razor shaves. and bad stropping doesn't help at all. if your stropping is spot on, 20-30 laps will suffice. and if its not then any stropping can affect the edge. you can watch videos all day long and you get an idea, but like was mentioned before it takes time to master stropping once you do then 20-30 works , 100-200, really makes a happy razor edge, it does make it smoother and laser straight.

look for a mentor in your area and advance your shave. but if you had a well known hone pro hone your razor and you didn't strop it dull then its more than likely your technique that needs work Tc