The first fishing trip

I went fishing for the first time with my friends yesterday. We carried five fishing poles, some shrimps for baits, a cooler and some other stuffs. I threw the fishing line into the lake after I put the bait on the hook. A few seconds later, I felt my fishing poles was moving and I reeled my fishing line in as quickly as possible. But I was very disappointed when I saw no fish on the hook and even the bait was even gone. Then my friends taught me some skills.

They said that I should slightly lift the fishing pole first to guarantee the fish had been hooked before getting the thread back. Then I did as they said and I caught lots of small fishes and a big one. We feed some small fishes to the pelicans after we finished. Thanks to my friends for giving me a really wonderful and impressive day!

- - - - - - -

Great story, and great English! This was especially hard because you need to use special fishing terminology, so I helped you with that. Good work.

The First Fishing Trip

I went fishing for the first time with my friends yesterday. We carried five fishing poles, some shrimp as bait, a cooler and some other stuff. I threw the fishing line into the lake after I put the bait on the hook. A few seconds later, I felt my fishing pole was moving and I got (reeled) my fishing line back as quickly as possible. But I was very disappointed when I saw no fish on the hook and even the bait was also gone. Then my friends told me some skills.
They said that I should slightly lift the fishing pole first to guarantee the fish had been hooked before getting the thread reeling the line back. Then I did as they said and I caught lots of small fish and a big one. We feed some small fish to the pelicans after we finished. Thanks for my friends for giving me a really wonderful and impressive day!

Shrimp, stuff, bait and fish are nouns that generally have no different singular and plural forms. Whether they are singular or plural can be determined by the rest of the sentence; some fish, a fish, some bait, the bait. Stuff is always plural, you cannot have a stuff.