SunnyeJ - that's why I asked - I didn't think you could be in the UK.

Regarding your training, you are doing well, but what I meant is that he is far too young to consider having learnt his recall and lead walking (he will get older and more confident and it could all go out the window) however you have made a good start.

With regards to house training - honestly - he is too young to expect it really - he may still not have complete control of his bladder yet and it takes time for them to associate the feeling of being full with emptying the bladder and bowel. Training this is much more difficult if you are away for long periods of time. The normal methods are to take the puppy outside (or wherever you want it to go) regularly, stay with them until they go and heap praise on them. This needs to be done after every meal, after play, after sleep and about every half hour too. If you are not around to do this it will take far far longer. How long is he left (between your cousin and your working patterns?

PS
There are many many countries that don't treat their animals well - including many cases of neglect here in the UK. I've never been, but my daughter visited India last year on a gap year and LOVED it.