How involved are you in active, engaged and deeply meaningful ministry?
I ask this not to denouce or condemn you, but to get a sense of the framework from which you are operating.
To love God and love others as yourself, is neither vague nor overly broad, I think, once you've engaged in a ministry in which you really pour yourself out for the sake of 'the other.'
How does one love God?
Consider this. The other, better, way to translate the word 'love' in that context is 'charity.' God provides for us a grace that is unearned. In turn, provide an ever-giving-love for the sake of another(s) with no expectation of return or acknowledgement. Do it out of love for the love that God has given you. Then you will be loving God as the scriptures command.
As ebia said, the objective of the church is the realization of The Kingdom of God, The Now-And-Not-Yet, here on Earth.
The next question being, what then is The Kingdom of God?