Recording own samples

Hi Everyone,
I would like to do my own recordings and samples to be map to keyboard etc…

What I was think about doing

I thought about doing simple sfx
Not to make it to complicated

My Idea
Record scratches
I would record
4 slightly different variations of scratches
and other one was water going from a tiny drip to gradually to flowing water Gradually
This this correct way Of Doing this ?
Any tips from others on how to start this ?