iv been doing lsd once a weekend now just 1-2 hits each time, and the effects have been the same, my tolerance hasnt gone up or anything but i was just wondering if this is too much, would it cause any mental problems or will i be fine?
Nobody can answer that question for you but yourself. Pharmacologically speaking, yes it is fine, but many people would say that is too often for other reasons.
If you feel OK, go for it... Ultimately YOU know your body and mind better than anyone else, so you're going to have to answer your own question. Err on the side of caution I suppose.
.02
you will probably start wanting to trip less often (eventually) on your own accord
when in doubt, wait it out. In other words: when asking yourself if you want to trip, if you don't reach a definite "yes" fairly quickly, take it as a no and wait for another time.
Though going out on a limb and taking a psychological risk can be very rewarding, as with any kind of risk... but not something to be taken lightly by any means.^ Yeah. The above quotation is the mantra of any responsible tripper.
If you've already done it at least a few times, unlikely to get skitzophrenia or bi-polar this late if it ain't in your family, but HPPD (Hallucinogen Perceptual Persisting Disorder) is an issue for some. Would say keep an eye on your vision when you're sobre, if you increasingly notice things in your peripherals that aren't there, see occasional visuals, etc. I'd say give it a rest. Can't really imagine sober tripping to be enjoyable...