Dude, you really NEED to do volumetric dosing for DOC, weighing small amounts raises the proportion it could be off due to scale error, and then eyeballing a pile of a possibly inaccurate 8mg into 4 piles is really making you not know how much you're taking, and DOC is a drug for which a half of a milligram can make a substantial difference.
Volumetric dosing is super easy. Get an oral syringe, you can get them for free at pharmacies if you ask, they're used to dose liquid medicine, no one should even look at you funny. Some pharmacies also sell them on a shelf somewhere near the pharmacy too, if you're nervous about it. Then, get some vodka or something, basically you want a distilled water and alcohol blend, at least 20% alcohol (to prevent microbial growth). So, you then proceed to weigh out a larger amount to put into solution. I go with 30mg at a minimum. Your scale could still be off by +/- 2mg or in that range, but if you weigh out 50mg, then you have between 48 and 52, and when evenly distributed across all the doses, it's quite an acceptable margin of uncertainty.
After you weigh it out, measure a known amount of your water/alcohol mixture, put in a vial or jar or whatever, and dissolve the DOC you weighed into it. I like to use 1mL per mg for DOC since it's so potent, I have these little 1mL oral syringes and since they have 10 subdivisions on them, I can dose accurately to within ~100 micrograms.
I think you really need to invest a small amount of effort into getting with volumetric dosing before you take DOC again. You *think* you took ~2mg, maybe you did, maybe it was 1, or 3? Who knows? DOC needs to be used smartly because it is very potent and causes vasoconstriction, especially at higher doses. It also has a steep dose/response curve. Honestly the difference between 2mg and 3mg is quite a lot. 3mg to 4mg is a lot more. I've never done it at 5mg personally, and I fucking love DOC and have done it many times.
Tread carefully.