Unless you know exactly what you are doing, mixing your own is a bad idea.
Unless you know exactly what the plants are telling you they need, mixing your own is a bad idea.
Unless you know how to rectify an overdose situation in the medium, mixing your own is a bad idea. (gotta figure-out the cause first)
Unless you are going to compost those organic ingredients prior to use, they can actually do more harm than good.

Organics can and will burn if used improperly, and must be in a form available for plant uptake.

The organics previously listed may be fine for outdoors grows, or for an experienced grower indoors...but the slow-release properties of the organics means that once you put it in the soil, it had better be the correct ratios...because you can't take it out once it's in there.

Most major-brand potting soils are widely available, buffered, cheap, and they work just fine once you get used to using them.

In my book, organics are waaay overrated. Often to blindly anal extremes.

Quite a few of AN's products are simply different mixes of molasses and additives. Overpriced, and you can get the same results with affordable nutes, unsulphered molasses and some patience. (AN is an unnecessary, expensive habit)