If you are trying to get super fast results, I'm sorry to say that's is not easily done these days. Google Panda and Penguin updates came in to make sure you are not going to manipulate their SERPs in a way that go against their rules. I'd say you should go White Hat. This all about quality. You make good-quality content that is interesting to your customers and relevant to the niche you are operating. Keywords are to be positioned carefully and avoid stuffing your website with too much keywords. Proper keyword density is to be observed but this seems to vary or it depends on the situation (some say 4% and below are safe).
You can submit back links online en masse. But the focus is on quality building, not quantity. Trying to achieve over 1,000 back links a day can send a red flag to Google. Google is very aware about mass link submission software. For them, this technique is unnatural. Google wants third-party sites to naturally link to yours.
But White Hat takes a long time to give you the desired results. But it can saved your site from future algorithm updates. Just make sure that your White Hat tactics wouldn't be seen as Black Hat by Google. Other web owners are just lucky. Perhaps they managed to put their links to a SERP category with less or zero competition. But there could be other reasons. Try observing why other sites are so successful in staying at the top all the time.