https://www.youtube.com/channel/UCFoe3PEb1_7sAY1ZgehNP3A
This is a great youtube video and channel in my opinion. Im only 2 months in to my DIY mixing and have recently branched in to making my own recipes and am starting to have a few successes. PERSONALLY as a newbie what has been or is working for me if it is any help would be:
1) Start by mixing simple recipes from here that dont have many flavours in. Its more fun than doing stand alones and you can get a rough idea of flavours from it
2) Take notes from everything you mix as it helps moving forward. The great thing about doing flavour art based recipes is there is already a great section by HIC of my notes on which doesnt of course corrolate directly to you, but gives great guidelines and will save you a fuck load of time (hope a lot of the 80 are flavour art hehe)
3) When you do try your own mixes, start with simple ones and personally I would say try and use all concentrates in it from the SAME brand. I found it really awkward mixing flavour art and the perfumers apprentice together at first as the strengths are so different until I learned a bit more from experience to match them up
4) Realise quite a large percentage of your initial efforts will not work as you will make mistakes......5% ginger is a big one to make!
5) The thing that has probably helped me more than anything so far...read up. There are hundreds of recipes with comments on here, youtube videos, flavour concentrate reviews etc etc, the more knowledge you can get from more experienced people BEFORE you try and make your own recipe will hopefully mean when you do "trial and error"....there should be less error.
6) Finally my little tip to making your own recipes easier...there is a recipe for most flavours you want to make you can either adapt or add to your recipe. For example I had a crazy idea of making a donut with cheesecake cream filling and frosted cupcake cream....so from here and elsewhere I managed to find a donut recipe, HICs make your own cheesecake recipe (filling only) and a butterscotch cream recipe and knew from reading here that marzipan can add a glaze/frosting, put them altogether and hey presto....well not quite, it needs adapting but hey haha
Anyway Im no expert, just a beginner like yourself but thought you may appreciate the views of someone nearer to where you may be at that is starting to have a bit of success