I'd strongly advise not to take a stance "no drugs at all, no matter what the cost". Prescription drugs can be a help in combination with other forms of therapy (behavior modification ot other forms - depends on the causes of illness, too). Especially as ADHD is nothe only problem.
Try out what works for you, not what an agenda promotes. If drug-free works - great. If not - better take meds than suffer.
Some depression are even.. hm, does endogen translate? (In medical german, this means: No cause in a trauma or life circumstances but caused by bodily disfunctions).
YOU choose your treatment. YOU decide if you need treatment. If you suffer, seek treatment. If you know that you're different from others but somehow like it despite some degree of suffering - don't seek treatment. "Normal" is just a point of view
Unfortunately, I have no idea about the payment options you might have (German health insurance covers antidepressants, therapy etc. for everybody), but if you're not able to pay at all, perhaps there is a self-help group available to you, or a office where you can get advice on your options?