so i changed my clutch like 12k ago, now all of a sudden some constant noise is heard commin from the gearbox end

there is no noise at all if i am driving slow in first or second gear or if car is not moving, doesnt matter if clutch is up or down or in neutral gear, noise is still there but only when driving a little bit faster, today noise became rly loud for like 30mins and went back to "normal" loudness, i am suspecting driveshafts as when i turn steering wheel to the right noise becomes louder and goes a little more quieter when turning steering wheel to the left, there is enough oil inside and no leaks, could driveshaft lube gone out of that rubber cup and is making that noise as there is no lubrication?

Sound like constant velocity joint in the driveshaft to me too. Do you feel any knocking in the steering when you turn?

there is no knocking in steering wheel while turning, just found out gearbox oil was leaking so i removed gearbox oil filler bolt and oil didnt start pouring out so i knew there isnt enough inside, had to add around 300ml that it started to pour out, i think noise is still there but lower volume or thats just placebo, could gearbox made that noise with only 300ml less oil?

Must admit the CV joints on my punto have not failed me yet, the joints seem to be reliable. The gearbox failed on me once, noisy under power, and now fifth gear is jumping out on the second box. So the gearboxes judging from my experiance on the punto's are not that reliable.
300ml of oil will reduce any noise but not sure by how much. Once the noise starts due to some failure then 300ml will not fix it.
Turning though should no cause additional gearbox noise so you need to check this noise. You may have a bearing issue on the wheels.

havent even thought about wheel bearing

but i tried lifting front tires 1 by 1 off the ground and putting it in to first gear and and try to take off, i would only hear the sound when right tire was off the ground,

what if i would remove that big 32 size driveshaft nut on the wheel side, pop driveshaft out the wheel secure it somehow, put tire back on, lower the car and jack it up on other side put it in first gear and listen for the sound-> so if noise is gone that would tell me wheel bearing is bad, but if noise is still present it would tell me driveshaft is bad, sounds like a plan?

i always removed drivershaft bolt that my buddy stood on the wheel while i loosened the bolt with long metal pipe extension, but then i found this

ideally, the hub should be held by a suitable tool bolted into place using two of the roadwheel bolts.

what do they mean by that?

http://fiat-punto-cars.info/driveshafts/127-driveshafts-removal-and-refitting

3 The front wheel hub must be held stationary in order to loosen the driveshaft nut. Ideally, the hub should be held by a suitable tool bolted into place using two of the roadwheel bolts. Alternatively, have an assistant firmly apply the foot brake to prevent the hub of Fiat Punto from rotating. Using a socket and extension bar, slacken and remove the driveshaft retaining nut.

that noise looks like to be bad wheel bearing

yep it was wheel bearing, this is what happened when i pulled driveshaft out

Never done the wheel bearing on my Punto. Are they difficult to do? Will they brake when you try to remove the driveshaft any way?

well this wheel bearing just fell apart, it also produced some loud noise after i gained speed, i got another mk1 just for spares so u just changed whole front stub axle