I can just say
It' been more than 2 years since the last time I swam.
I do wanna swim this time.
Even it was raining,
I still went to buy goggles and a hat for swimming.
In the event I was exausted！
I can swim the whole distance without breathing before,
while now I can't do it even half the distance！
It turned out that the distance is 25M before,
while 50M today！
No wonder the other side was so far away！