You can maintain a healthy life as a smoker if you practice some of the tips I am going to mention in this below:
1. Drink more water: smoking keeps you
dehydrated.
2. Tooth brushing after smoking: of course you
know the effects of tar on your tooth; it turns
your tooth to dark brown
3. Exercise: this is essential because tar shrink
your skin and makes u look older than ur age.
4. Take fruits and vegetables as it replenish your
body.
5. Apply lip balm: smoking especially weed can
darken your lips.
Abstinence is the best but if u can't, mild consumption can be better

Makes a lotta sense, good one

I doubt your number 5 tho

Lip balm or close up tooth paste also helps in removed darkened skin and turns it into freshly colourful one.