I often feel that myself. A suggestion: Pray to Him just what you have posted here. Confess what you have confessed here, directly to His ear. Ask Him to give you that love for Him. Talk to Him about all those feelings, in as much detail and with as much feeling as you have about your failure. Everything you have just posted and more. Ask Him for forgiveness and repentance. Ask Him to give you understanding of anything you don't understand, the ability to obey anything you feel you don't yet obey. It's a good thing, by the way, to recognize your failure, it leads to humility and renewed dedication. You may go on feeling you can't love him enough, it could even get worse, you may even think you love him less and less, but that too is a good thing. You will be drawing closer to Him in your weakness.