what should I invest in as a uni student studying engineering with about RM30K (little to no experience)

I am currently a uni student who have saved up to about RM30k. I realised that keeping this money in my bank account and letting it rot is a terrible idea. I love seeing big numbers but im slowly losing value to inflation. Just wanted some advice on what to do with this and what to invest in. My goal before grad is to save up and earn rm100k (3years). pls advise! I don't have any experience in investing so pls explain as if ur explaining to a kid haha