You cannot have God and continue in sin, you cannot serve two masters at the same time.
If you have the Lord as your Shepherd, this means that everything is within your reach, everything is complete. If you feel incomplete it is because you have not yet made the Lord your Shepherd.
The Lord knows how to provide in the midst of all circumstances, perhaps now you do not have everything you want but you can approach the Lord in prayer, because it is written: you do not have because you do not ask, but ask and it will be given to you.