Fishing is RidiculousFollow

I would suggest going to the very first village or town that you first reached immediately after the newb starter area, and look for the fishing trainer there. Beside that fishing trainer should be a fish-able body of water, which I would suggest fishing in. I would also suggest buying a few lures and attaching them to your pole prior to casting off.

When you first start fishing, and I mean at skill level 1, both the capital city and starting zone waters are tricky. What you need to do is buy a fishing lure and apply that to your fishing pole. This will temporarily buff your skill high enough to avoid losing your catches.

Just to help - start with the shiny bobber(cheap). I started with it and sure enough started lvling up pretty fast. Don't lose faith. If you are in a guild see if you have any enchanters(lvl 145)...that can enchant your gloves with a +2 fishing buff.
Keep on fishing...you will lvl up really fast, just wasting a lot of time fishing instead of grinding. BUT IT IS WORTH IT!!
Depending on your server certain fish sell for a really healthy profit!

Also, side note, if you have cooking as a 2nd you can lvl up pretty fast cooking just about every fish you catch.

If you plan on levelling up fishing, you might as well make some money at it. Fish in areas that have oily blackmouth schools and sell the suckers at the AH. On my server they are in high demand and can sell for a couple gold or more per stack.