I can never catch anything off of crankbaits,plastic worms, or senkos.

Then you're lost. ;D

What do you catch fish with?

cranks and plastic worms catch a ton of fish but i bet i know a few of the things you are doing wrong.

CRANKBAITS: With lipped crankbaits you always want the lure to deflect off of something. That usually means having it "dig" on the bottom. You do not want it to dig so much so choose a crankbait that dives to or near the same depth that you are fishing.

WORMS: You dont want to overfish plastic worms. just cast them to areas that hold bass and drag or jig the worm back very slowly. You will definitally catch fish eventually.

Take up crocheting  

A good way to practice them is to watch videos online or go to someone you know to teach you different techniques, strategies, best places to use them and best times.

I personally use the crankbait when fishing gradually sloping points, flats or deep water. With plastics there are many different rigs and presentations. Read in the articles about the different rigs, techniques and presentations and practice with them on ponds or in areas where fishing is easy.

With senkos and wacky rigged weightless worms, it pays to watch the line as the lure sinks, a strike will be a sudden twitch and/or running of the line.

The best advice I can give you is read the articles and practice, practice, practice!  

Patience young Padiwan! Soon you will be a Jedi and catch those who alude you will! ) (especially if you follow all the expert advice from BR members).

Then you're lost. ;D

What do you catch fish with?

Dynamite ?  :-?

Impossible NOT to catch bass on a senko.

get a bag in watermelon /black.

T-rig it on an a quality 4/0 offset worm hook (not wide gap)

make sure it lays straight.....

cast it in or near cover.  

use a MH rod.

do nothing....a weightless senko will flutter like a co-ed's eyelashes on prom night.

WATCH YOUR LINE !!!!

if it twitches...moves to one side, heads north when the current is south, or does anything that suggests the possibility of fish,  then

smoothly reel in the slack and set the hook.

Keep doing this and if you still don't catch bass, your fishing in your bathtub.

Have you tried putting the baits in the water? That is pretty important.

I'm just kidding with you though, work on finding the fish. If you are fishing where the fish are, you should be able to get bit, but if you aren't, maybe you aren't on the fish. Try reading up on fish location and habitat, that may help.