The moat inexperienced Person right now in the Sub

Hi guys I'm G,22 F...I've been doing Sip every month for the last 3 months,But i want to save up for the south Africa trip I'm gonna go in a 5 months.I want to raise at least 70k for my expenditures there.I can't touch my mutual funds,so how should I invest in stocks?I have no idea about stocks except for the fact that my uncle is a pro at [it.Help](http://it.Help) this noob please :(....which app should i use and how should I know which stock to invest in and which to not?