convert electronics circuit to pcb
Short answer - Practise
Long answer - I guess you can search on the net for practical guidelines for laying out stripboard PCBs. However I would seriously suggest you just jump in and learn by doing. Start off with simple circuits only containing 6-12 components then work your way up. Also if you need to learn symbols for circuit diagrams there are a 101 sites on the net to teach you. Here is just one I quickly found
h**p://www.kpsec.freeuk.com/symbol.htm