Welcome! I would recommend that you take the time to figure out what you expect from your soap ie; I want a long lasting soap, I want a lot of lather etc.
Then start playing with a
soap calculator. To get you started here is my go to recipe. Lard, coconut oil, palm oil, high oleic safflower oil, castor oil and the only additive that I use is sodium lactate. I use this recipe for 99% of my soaps.
If you research the ingredients that I listed and see why I use them. You will begin to get an idea of what each oil brings to your soap and from there you can decide what oils you want in your soap. A general guide for your ingredients would be a combination of soft oils and hard
There is a lot to learn and it can be overwhelming but I started with someone else's recipe and learned why they were using them and then I used the
soap calculator and started substituting ingredients that fit my budget at the time and gave me the soap that I wanted.
Embrace your failures because they are your best learning tool.