That's how it is for me, and I was somehow able to do it without medication where medications would help for a little while, then didn't. But I spent about three months largely to myself, stopping substances, and doing some really horrific shadow work, so there's that. At first I was definitely on a high, now it's just mostly level. I still have the highs and lows but graphing it on x-y axes would look like long stretches of straight line with a few small hills and dips spread out here and there.
Nicotine withdrawal upcoming and oh boy ..