In all the prayers of the Apostles, there was little thought of personal needs or happiness. It was their desire to witness for Christ and bring Him and His salvation to others.
Praying constantly for ourselves will come to failure. Only in intercession for OTHERS will our faith, love, and perseverance be aroused, and the power of the Holy Spirit be found.
If we are to learn to pray properly, we must open our eyes and hearts to the needs around us.