Ah...
You juniors are 'dorable as always.
I'd have to see your body to be sure, but it seems like you successfully cultivated the technique, Moonsilver. There shouldn't be any problems beyond the obvious - like, intoxicants will tend to be less effective 'nless you have a technique that lets it in, reduced need for sleep, enhanced endurance, a bit of a shock to your sleep schedule from that, a bit of change in hunger - most people have it taper off, some get a bitta pangs for food for a while - either is normal - the purification process sometimes can't get the best results without more stuff to work with and sometimes they'll be extra storage and such that means you need less.
Uh...
There's a bunch of poisons, alchemical stuff and techniques that have somewhat different interactions depending on your rank, you'll have overall better physical stats - the technique you used shouldn't have any flaws that cause problems with controlling that, though it can happen for a while in some less dexterity focused techniques. Psych meds will tend to work less and for shorter times, though generally the stuff that that targets should sorta taper off to nothing from this - mental disorders exist amongst cultivators but your brain becomes... less important, and the sort of problems that come from that won't really translate to your spirit, though some people end up sorta instinctively reimplementing that? Anyways, there's no reason to expect it to be worse then anything you had before, and for most people it's lot better.
In terms of practical advice for being new - don't donate blood or organs or anything from your body because your physiology is now slightly alchemically active , at least without supervision from someone who understands cultivator medicine, and for similar reasons try to avoid complicated mixes of herbal medicines, especially when cooked or in close contact to your spiritual energy 'cause there's a bunch of possible minor alchemical things like that that can pop up, be careful of intense religious, meditative and spiritual experiences generated without the use of tested cultivation technique, at least 'til your foundation is established and you know a bit more about this stuff - it's possible to accidentally try to create a technique through processes like that and experimenting can be reckless, don't make oaths that you aren't prepared to keep 'cause it's taboo and also harmful, if you're still a virgin not fucking for at least a while can give benefits to your cultivation, and just like don't do anything obviously reckless?
There's a bajillion side effects that most people don't really notice from complicated shit like this - studying the effect of cultivation on gut microflora was fascinating - but fundamentally there shouldn't be anything to worry about, despite how fuckin' long this post is, ok?