My domain is about 2 months older, so i want to know that can i still place other ads affiliates with google adsense on the same page or i need to wait a little longer for this??
There's no issue using any other affiliate ads with Adsense. Just read their TOS that the ads you're putting are not violating Adsense's TOS
There are tons of sites doing it. Even if not against Google TOS they will not ban your account unless you do something really bad...
I already seen lots of sites using other kind of ads aside from adsense. Maybe you can now use other ads as long as it does not looks like an adsense ads too.