Your joy may be full

The more I read the True Vine discourse in John 15, the more passages which have previously appeared elsewhere prop up in front of my eyes. This serves to reinforce my hypothesis that John 15 is an insertion of a latter day. For example:
Abide in me, and I in you (John 15:4a).
He who eats my flesh and drinks my blood abides in me, and I in him (John 6:56).
ask whatever you will, and it shall be done for you (John 15:7b).
Whatever you ask in my name, I will do it, that the Father may be glorified in the Son;
so that whatever you ask the Father in my name, he may give it to you (John 15:16b).
if you ask anything in my name, I will do it (John 14:13-14).
This is my commandment, that you love one another as I have loved you (John 15:12).
This I command you, to love one another (John 15:17).
A new commandment I give to you, that you love one another; even as I have loved you, that you also love one another (John 13:34).
In the reading today, I am touched by this:
These things I have spoken to you, that my joy may be in you, and that your joy may be full (John 15:11).
Am I joyful? Not much. While I enjoy reading the Bible, many of my students do not and this troubles me. The word of God cheers me up when I am depressed. It is a free gift from God. I suppose I am somehow transformed. But how do I make my students enjoy the word of God, letting it transform them? I have no ready answer. I have tried various ways such as work sheets, projects and video. Probably there are too many activities and I have not given my students enough time to quietly absorb the word of God. Probably, I focus too much on the mind and the intellect and forget the heart. Probably, my joy has not been adequately manifested to infest my students. My Lord, show me the way and empower me.
Physically, I am a DM, a sick man. A sick man is seldom a joyful man, isn't he? Yet, I try to live joyfully as a sick man. My sickness may be useful as a warning to my friends so that they may lead a healthy life. I try to render my help whenever I see my neighbour in need. I feel good about it because I am still capable to be helpful and I feel needed. I have learned to live with DM. Probably, I should not be too greedy to feel good and joyful all the time. I have to live with both joyfulness and bitterness.

My sweet Jesus, You are my source of joy. May Your mysterious joy and peace reside in me so that I am able to embrace both sweetness and bitterness in life. Show me thy way. Amen.