There is a difference between training and trying.
Trying is a direct attempt to produce some kind of result. Take knee surgery, for example. If your knee is injured in some way, then surgery is a direct attempt to repair the injury. Surgery is a way of trying a specific methodology that has good potential to produce a positive result.
Training is very different from trying. Training may be aimed at the same end goal, but it is an indirect means of getting there. If your knee is injured, you could opt for a training regimen in place of surgery. The stretches or exercises you do may not be directly producing repair in your knee, but they are creating conducive conditions for repair to happen.
Christian, you are called to “Train yourself for Godliness” (I Timothy 4:7), not to “Try to be more Godly.” There is a big difference in this as well.
None of us can produce Godliness simply by our own fortitude and effort. Rather, Godliness is only produced by God as He forms our character to be more like Christ. So when we tell ourselves (or demand of others) “Just try harder!” or “Tsk, tsk, next time try to be more loving,” we are attempting to do the impossible.
Rather than trying to muster up will-power to somehow produce a change in our hearts, we need to learn how to be intentionally indirect. And that means training, not trying, for Godliness. Unlike knee surgery, we cannot directly operate on our heart spiritually and remove the cancerous anger or replace the longsuffering “ligament.” Instead we train our heart to worship Christ (not “getting my way”) as our greatest treasure. We train our heart to “Count it all joy when we meet trials of various kinds” (James 1:2). We train our heart to share honestly with our brothers and sisters in Christ and to receive their encouragement and prayer or even rebuke.
Sinful anger is not overcome by directly trying not to get angry. (I could tell you firsthand how effective that is!) No, sinful anger is overcome indirectly as my heart of worship increases through training. Sinful anger is overcome indirectly as my confidence in God’s goodness grows through training. And sinful anger is overcome indirectly as its power is diffused in grace-filled community through training.
Training is not aimed at producing change, but at opening our hearts to the change that God alone can produce.