Honestly I've used DNP many times and the simple answer imo is the huge energy deficit is just gonna make you feel absolutely horrible lol. no way around it really. Any scenario where you're restricting energy intake and expending alot is nearly always going to take a toll on you mentally, drugs or not. When I diet WITHOUT DNP random painful annoying things start popping up that weren't there prior.
On DNP the body tries extremely hard to make you not expend energy, pain is a great way to do that. The neurotic scientific approach suggests in an energy deficit basically every single feel good chemical goes to shit.
Something I will say that I dont like with DNP is that there is not a chance in hell you will lose fat "20-100%" or whatever percentage some chart says faster, it's like half that at BEST and that isnt even factoring in how fucked up the stress levels get on DNP. The neurological fatigue wrecks your ability to move at all. ironically this is also why it's not as dangerous as the internet claims , your body slows itself down pretty much in a linear fashion to DNP dosage
It would be fantastic if there was some way we could replicate the increased body heat/ blood flow we get in a high calorie state to burn fat but it doesn't seem physiologically feasible without horrible problems like clen everything, DNP fatigue, caffeine vasoconstriction blah blah. Reducing stressful scenarios pretty much is always the best way to lose fat.