i need help building a laser

i have a diode with axis module, toggle switch, battery holder, 100ohm pot,

if you go to youtube, type in how to build a laser, the video's title should be DIY how to build a high power laser, i do not understand his steps, can someone write down the steps in detail? i need this for my science fair project, be so kind if someone helped me with the steps. thanks

You came here from the other thread and posted before reading anything.. : You need to read...there are several videos out there on how to build a laser...most of them do not explain that you should use a driver. Please read...you can trust 99% of what is posted here to be accurate information.

go to experiments and modifications and then go to threads of intrest there you will find a guide and other useful info so search before you post