I started last four months and i have 4.8k watch hours but just 198 subscribers.
You don't give enough information
How many videos is that?
If you only have one or a few videos - many people may love your content but not sub until you have a lot more videos...
I mean - is it worth subbing to a channel with very few videos
Also what type of videos... as the name ClipxHub suggests you may just be throwing up other people's clips... and I would think that may be very easy to make loads of videos - but it would be harder to actually get monetised anyway... and maybe as there is less 'personality' in the clip type channel - it might take longer to get subs.
By longer I mean... if you had a 'real' channel putting out 'to face' videos about stuff - by the time they got 4k hours you would expect them to have hit far more than 1k subs... rather than if you had a 'clip' churning channel... that might get loads of views and then take a little longer to get the subs
If you are a clip channel - just keep churing out the videos - as you are already 1/5 of the way there - and it should get quicker and easier the more videos you drop
Though it may be tougher to get monetised than just hitting those numbers. I would love to know, if someone was just collecting clips and putting videos up, if it really is that easy [hit the numbers] and get monitized ... as YouTube is very keen on not promoting reused material...
Anyway - you would need to give more information for people to give you good advice
But getting that view time, and those subs, in four months - is amazingly good. So you have done far better than I guess most everyone else who has gone onto YouTube. Easily top percentile... well done x