Cease from Striving

I'm striving to please God."

Trying to "please God" is an OT concept, because in their minds, they were distant from God. Under the new covenant, we are accepted in the Beloved(Ephe 1:6 NKJV). 

"But what about good works? Because it is all 'grace' now, does that mean we are to ignore good works?"

We are masterpieces created in Christ for good works (Ephe 2:10), but the good works does not come as a result of us striving from our insecure need to 'please God'; it naturally manifests as a fruit, because it is God in us, who does the bearing (Jn 15:5, Phil 2:13).

In other words, relax. : )