Aquaphobia?

So my first week as a swimmer started off kind of slow, but I'm starting to get the gist of it. Monday and and Tuesday were basically drills and techniques to get my form in place, provided by the blog I had found several days ago. Though, to be honest those were the harder days. Even though it was tedious repetitions on how to use my arms, legs, and keeping my torso in check, I had found out that I don't float. My friend who was on the swim team was finishing his own pool workout, and decided to help me out, being that it was my first day. The second he jumped in the water, he came straight up and started swimming around to loosen up some more. Following him, I jumped in the pool and got to see all thirteen feet of the pool, sinking straight to the bottom. This was my first time in a pool over 4 feet, and became one of the scariest moments of my life, especially getting a feel for what thousands of gallons of water pressure above you feels like. I don't know why yet, but in order for me to to stay afloat I needed a flotation just to stay water level.

The first two days of drills and technical issues were easy, being that in track we do similar stuff to maintain our form also. On Wednesday however, I started to freestyle swim the length of the pool , and was advised to do this without a flotation device. This meant that I couldn't just swim casually back and forth the length of the pool because I had to move fast to keep my self afloat. So I could only do this in small increments. This is were my expertise in track training came in. I wrote out a workouts for myself so I could get in the same amount of distance with more rest but at a faster pace. So initially getting in the same workout but in a different style. Swimming has so far had a positive influence on me, and I'm enjoying it respectively... past Tuesday that is at least.

This is a link that helped me getting started as a beginner swimmer...
http://swimming.about.com/od/sampleswimworkouts/a/8_week_plan.htm