This is a game with no defined victory. Making progress with your town and army is satisfying and during the early days of playing progress is rapid and that satisfaction is sufficient to sustain interest. Later, however, progress slows down a bit and this sort of satisfaction lessens.
I like attacking (in this game and many others) and made my first tile hit, as far as I remember, on the second day of playing so a second source of satisfaction for me is to identfy targets within the scope of my current military strength and also to test that strength against stronger opponents.
But there are relatively few players of that particular kind.
Leaving small scale battles and squabbling with enemies to one side, keeping the game interesting seems to me largely a matter of setting achievable short and medium term goals. So fairly recent goals for me have been: completing the last couple of hero's keys to max out my hero; getting our SH to level 4 and building the Tower of Odin; and then building up our military strength to be able successfully to defend Jotunn marches in a siege. Reaching each of these goals gave me considerable satisfaction - all the more so when it took a period of months to achieve.
Reading what is written on facebook threads and in these forums makes me think that quite a lot of people who come to the site don't do this . Rather they are motivated by a general objective of becoming one of the palace size 40 heavyweights able effectively to compete in the most challenging areas of the game like Jot or Asgard and keeping pace with clan mates who come to shop for pixels. Perhaps there is satisfaction in this but the opportunity for disappointment and frustration is considerable and the main thing expressed, as with the OP, is impatience.
Taking the OP as an example s/he feels limited by a lack of sufficient rss to maintain or expand his army. A short or medium term target he might therefor adopt is to improve his military strength and technique so as efficiently to gain rss when making attacks on Towers. In all likelihood this will require a measure of co-operation with clan mates as it seems certain that onslaughts are much more efficient than solo attacks. Perhaps advice is needed from those more experienced. I often look at the ranking list in my kingdom for plunders and after a successful Fury, for example, it is commonplace to see people who have gained many trillions of rss - the top one listed currently gained 19,988,372,921,871.