Questions about tk domains

Ok, so I've got one tk domain and I'm spending huge amounts of time trying to make it get a good position on Google. I've got low competition, there are only 2 or 3 sites in my country that talk about my subject, I have my own original content, with stuff I write and I think of (it's supposed to be a news site, but I also post my opinion on concerts, albums and other rock music related stuff), but still, it only gets 5 visits per day. I'm wondering if this is because I'm bad at search engine optimization or because Google just doesn't like tk domains.
If Gogle doesn't like tk - what other free alternative do I have? I know about co cc, but I'd prefer a first level domain. I'm also afraid that if I'll ever get a lot of traffic, they'll redirect my website to a parking site and I'll lose all my work. So that would be another reason for a move. Is there any way I can get a company domain for free? (I may sound like a cheapskate, but I really don't have any money right now and this is pretty much urgent; I want to know if I keep or not my business going)

BTW, by company domain I mean COMpany (remove "pany" and you'll get it), but the forum won't let me write that word until "I'm a member for a little longer".

there are pretty darn cheap domain sales for a regular top level domain you can hop on from time to time. If its a website that is worth anything, I can't see why you would mess with all the headache and uncertainty that you are going through vs paying <$3-4 for a regular domain.

And yeah to answer your question, it's going to be a lot harder to rank those domain extensions, due to the very nature of the beast.