Don't insist on God showing you more before you make a commitment - what you have already is enough for that. Recognise the Father is at work in the cross and in your difficult circumstances. Jesus promise that every Christian will do greater things than He did will be fulfilled in the new creation. There is no such person as an ordinary Christian. God will do extraordinary things through us all. We must trust Him and seek His glory. We must learn how to give glory to God.