The most effective way to do it, is to do it.
You never know what motivates you.
Wherever you are - be all there.
Do not weep do not wax indignant. Understand.
To know oneself, one should assert oneself.
Without hard work, nothing grows but weeds.
Always desire to learn something useful.
By failing to prepare, you are preparing to fail.
If you think you can do it, you can.
The dog that trots about finds a bone.
I did my military service from 1989 - 92 and I was never shot at or had to fire on anybody. I was very lucky. I was more involved in intelligence and counter-intelligence.