In addition to all the good advice you've already received here, I would strongly advise that in the beginning you should do yourself a huge favor by keeping it simple. When you're first starting to make soap, the process itself can be very intimidating and confusing, so don't make it any more so. Go easy on yourself. Here's how you might do it.
Choose a simple recipe. Few ingredients. The "holy trinity" is the holy trinity for a reason. Olive oil, palm oil and coconut oil are the basis of most handmade soaps and a good place to start. Equal parts of each, or 50% olive and 25% of coconut and palm are some good starter recipes. Three ingredients, no fragrance, no color, additives, swirling, etc. Get comfortable with setting out all your supplies, checking the batteries in your scale, making sure your lye solution and oils are at the right temp, double checking your ingredients and their weights, make sure you have gloves and goggles on. Get used to the process, combining the lye solution and the oils, what does emulsion look like, how long does it take to trace, light trace, heavy trace, oops, too far gone, have to shove it in the mold! Make a few batches like this, they can be small, practice batches, so you don't have to use too much of your supplies, but enough batches so that you feel comfortable with this process. IMHO, you should be able to duplicate a successful batch of simple soap over and over before you move on to more complicated recipes.
Then you can add one variable, either color or fragrance. By adding one variable at a time, it makes it much easier to troubleshoot if you have a problem. When I read a newbie's post saying, "I made my first batch, with a three color swirl, with a floral FO, a mica line, goat's milk, pureed avocado, honey, and these ten ingredients, I don't know how to use Soap Calc, so I kinda winged it, and it didn't work out........can you tell me what went wrong? " Whaaaaaat!!! If you are capable of producing a simple soap successfully over and over, and then you add a FO and it goes wrong, chances are pretty good that it's the FO that caused the problem, and you can start there.....was it a FO that typically accelerates trace, or causes ricing? Or if you use mica for color and it morphs into some weird shade of yuck you never anticipated, or you used an oxide, and now you have undisolved lumps of color, or you used a lot of honey and your batch overheated.....these are easy problems to figure out. Know the complications that various ingredients can produce, and it's easier to troubleshoot, or avoid them altogether.
Perfect your recipes and techniques as you go along.....don't throw too many challenges at yourself all at once. It's very tempting when you first start out to want to try every technique and ingredient, believe me, I've been there. I can't tell you how much money I've spent on ingredients I used once and decided never to use again. If you make things too difficult for yourself in the very beginning, and you have too many failed batches, you may get so discouraged that you quit trying altogether. I think that by going a little slower, so that you can understand all the steps along the way, makes you a better soapmaker in the long run.
To sum it up, go slow, go simple. And be prepared for some incredible showers!!! :-D