Sounds to me like you're going to have to experiment a little.
1. If your taste buds are shot, wait until they return. That's kinda obvious. But make sure that's the problem and vape something that you already have and that has tasted 'right' to you.
2. Make a small test batch...say 5 or 10 ml of your preferred base ration of PG/VG without adding any nicotine. I personally like a 10 ml sample size.
3. Start with a low flavoring percentage of flavor...maybe something like 5% and do a tasting. I usually drip when I'm doing taste tests because it minimizes the amount of juice that I use.
4. Increase your flavor percentages in subsequent tests. Maybe try 10, 15, 20% and so on until you find your desired flavor percentage. Since you are using the original test sample, you will not get the exact flavor percentages since you are reducing your base each time you take a small sample out. But it should get you in the ballpark. You will probably see diminished flavor if you overshoot a target percentage.
5. Read Hoosier's blogs, especially the guide to Flavoring Ratios:
E-Cigarette Forum - Hoosier - Blogs
Good luck!