i think this means you gotta show you want it bro.
ie say i wanna quit a bad habit, sure i can WANNA quit it all day and all night, but it aint gonna happen until i make moves to show Allah i want it and make a firm niyyah inside.
you know it'll be nice to see the tafsirs of this ayyah, lets take a look

oh:
{ لَهُ مُعَقِّبَاتٌ مِّن بَيْنِ يَدَيْهِ وَمِنْ خَلْفِهِ يَحْفَظُونَهُ مِنْ أَمْرِ ٱللَّهِ إِنَّ اللَّهَ لاَ يُغَيِّرُ مَا بِقَوْمٍ حَتَّىٰ يُغَيِّرُواْ مَا بِأَنْفُسِهِمْ وَإِذَا أَرَادَ اللَّهُ بِقَوْمٍ سُوۤءًا فَلاَ مَرَدَّ لَهُ وَمَا لَهُمْ مِّن دُونِهِ مِن وَالٍ }
(For him are angels ranged before him) He has angels who succeed one another: the angels of the night succeed the angels of the day and vice versa (and behind him who guard him by Allah's command) and who drive him to the things destined. (Lo! Allah changeth not the condition of a folk) the blessing and safety of a people (until they (first) change that which is in their hearts) by failing to give thanks; (and if Allah willeth misfortune) a chastisement or destruction (for a folk there is none that can repel it) there is none that can repel Allah's decree concerning them, (nor have they) for those whom Allah wants to destroy (a defender) who can save them from Allah's chastisement; it is also said that this means: none can give them a refuge to which they can escape (beside Him) beside Allah.
so i think bro, all we gotta do is ACHKNOWLEDGE Allahs existence, his power over all things, that not an atom moves without his will, and then he will help us.
and by condition of a people akhee, it seems to be talking about a WHOLE RACE, a HUGE NATION. not just one individual, so it seems that we need to just be grateful to Allah...
wallahu a'lam ask a scholar
Assalamu Alaikum wa Rahmatullaah