I've smoked weed for 17 years. Had breaks in that time, but have always loved cannabis.
In that time I have learned;
-The less I smoke, the higher I get (in other words, if I smoked an ounce every month, and all day, every day smoking - my tolerance means that a don't get that high). Whereas if I smoke a couple of times a week - or month or whatever - i get really baked. Took years of smoking every day to work this out! You can chase a high so much that you end up building a massive tolerance, and virtually 'smoking yourself sober'.
-Smoking is unhealthy; investing in a good vapouriser is a great investment for health (and I've found that the effects are better [but slightly different] than smoking. Some people find the opposite - but my vape gets me far higher than smoking the same amount. Also - i can make edibles with weed that I've vaped - so I can get high on the same bud twice!
-Invest in a kid grinder if you haven't already got one - it lot only chops most bud up nicely, it provides a nice treat for an extra kick, or for when you run out or cannot get weed (I call this my "stoner insurance").
-If I am going to smoke, I avoid water pipes/bongs, change the water every time you smoke
-DON'T smoke mouldy weed
-Respect the power of weed (especially edibles). Be very careful mixing with alcohol or other drugs - such as psychedelics, particularly if you are not a regular cannabis user.
-People probably can tell you're high, no matter how "straight" you "act". Best not to turn up to inappropriate places stoned (such as work, or important engagements)
- Be aware of "set and setting" (don't get high in uncomfortable/unfamiliar surroundings unless you are confident to do so) or you're liable to get "The Fear"
-Have fun! There's no point smoking if you're not having a good time. Don't force it, or try to force other people to get high with you.
Hope these are some useful hints....