I promise you as an Apostle of the Lord Jesus Christ that as you strive to redouble your righteous efforts, you will feel renewed in your devotion to God the Father and Jesus Christ, you will feel an abundance of the Holy Ghost guiding you, you will be grateful for your sacred covenants, and you will feel peace knowing you are 'recommended to the Lord.'
Elder Ronald A. Rasband, "Recommended to the Lord", General Conference, October 2020
I want to emphasize something here that took me some time to understand. "Redoubling efforts" does not, by any stretch, mean that we need to work more, or double our workload. In other words, if we are currently reading scriptures for 30 minutes per day, we don't need to start reading for an hour per day.

Redoubling efforts does mean that we "redouble" the quality, not quantity, of our righteousness. Meaning, that we can no longer just go through the motions. We can't just study scriptures, pray, pay tithing, etc., merely because the Lord says we need to. Although, it is better to do it out of habit than to not do it at all.
We need to, I need to especially, start living the principle of what the Lord asks of us, in everything He asks, as opposed to following the letter of what He asks.
One law I always go to, one that immediately comes to mind, is the Word of Wisdom. I have a tendency to merely avoid those things that are explicitly spelled out in the law. Instead, I should be focused on everything that is not good, as well as everything that is good, for my mortal body. And that list is unique for each person. Granted, there are things that are bad and good for everyone irregardless of who that person is.
But, there are things that are unique too. For example, I don't do well with dairy products. Are they bad for everyone and, therefore, prohibited? No! Of course not. But, for my mortal body, they are not good, so I need to follow the principle of the Word of Wisdom, and avoid foods and products that are bad or not good for me and my spirit temple.
And there are many other laws that I need to follow by principle rather than letter. That, to me, is redoubling my efforts. And, I know that by so doing, I will not only feel more confidence and peace, physically, mentally and spiritually, allowing the spirit to want to stay with me, but I will also be molding into what and who Christ is. Think about that...has Christ ever called in using a sick day?