Don't get too sensorish. Just be who you truly are. Do things the way you want to do. I see people's S and N functions as two parts of a whole, who's sizes vary. It's pretty much impossible to be equal, hence preference. Keep to your preferences; trust me. If you develop your S too much it will depress you and stress you out. Developing too much Ni has caused me a lot of stress. Sure I get the benefits of having a lot of Ni, but at the same time I have left behind what I prefer using regularly, Se. Before I got more in touch with my Se, I had pretty much over analyzed my life and I couldn't really enjoy the moment very much. I still feel this way, but it's gotten much better. When I get bored is when the Ni comes in, and then I get depressed.
So, don't stray from your preference. If you develop, say, Ne enough, then Si will naturally develop itself. The same goes for Ni and Se. Don't force it. Just develop your intuition around situations, and the sensing understanding will follow. You probably just don't know it.
Ne developing Si- Someone sees every context that is applicable to the current situation. These contexts add to your Si understanding of the world, since that is how you view reality as it is. In a sense of Ne contexts.
Ni developing Se- Someone becomes aware of where the situation could lead, and how the situation could be viewed from every angle. Then, this Ni understanding of the world becomes Se. These Ni links become the current context that you're living in; and you become aware of all of the possibilities and facts in the current context (Se).