3 years ago I was you @Mumtothreeandadog now I swim 2-3km three times a week.
Swimming is (in the main) all about technique and physics. For the average person it's actually very little to do with fitness or strength.
These are the best tips I can give you (I have a triathlon coach who has done swim training and underwater video analysis with me; my tips are based on what I learned from him!):
-
slow down. If you lie on the water face down and relax you will float, so it's stands to reason that you don't need to kick and windmill your arms like crazy to stay afloat when swimming. All kicking and flailing does is make you out of breath.
-
stop kicking (too much). It should only be a gentle kick with the purpose of maintaining balance and assisting rotation. "Propulsion" should come from your arms (the poster above who advised working on "leg strength" is wrong!) Imagine you were trying flick a shoe off your foot - that's how you kick when swimming.
I couldn't get away with a pull buoy, it was too much of an extra thing to think about, so my advice is to invest in a pair of buoyancy shorts - game changer!
Using buoyancy shorts will help you relax and almost just allow your legs to float behind you while you focus on what your arms are doing.
-
it's all in the arms. Most inexperienced people swim with straight arms. All this does is push down on the water, pushes your head up and causes your legs to sink.
Keep your upper arm parallel to the surface and allow your hand to sink down (the "catch") and your elbow to bend. When your arm is at a 45 degree angle pull your hand back towards your hip (the "pull). As it gets closer, rotate your hip out of the way and push your hand back towards your feet.
The best way to practise arm position is with a float. Hold the float in your left hand by the left corner and extend it out in front. Swim one length just focussing on your right arm. Your hand should enter the water at the right corner of the float and then extend forwards under it. Then do as above into catch and pull.
When you get to the other end, swap hands and swim back. Do that 8-10 times at the start of each swim.
-
Timing is also important. When you "pull" this is when you get forward propulsion. At this point, you want your opposite hand to be extended in front. At no point should your head be in front of your hands (because the top of your head is flat, so just acts as a brake against the water!).
The tip my coach gave me was that when my left hand is out front, there should be a couple of seconds pause where it is extended and that I should not be allowing my hand to drop into the catch until I can see the fingers of my right hand out of the corner of my eye.
-
breathing should be automatic, not forced. You don't need to do anything to breathe other than simply turn your head to the side (or as my friend says, sniff your armpit!) if you lift your head your feet will sink. Try to keep one eye under the water and look across the surface of the water. A good time to practice this is when you are doing single arm practice with your float!
Lastly...... it takes 10,000 movements before something becomes "muscle memory". This equates to (roughly) 6/700 lengths of a 25m pool.
So don't give up....
JUST KEEP SWIMMING! 🐠