I am a newbie on this forum and I have read my posts that people complaining how they lost their fund as a result of investing on Volatile coin like BTC. Is it now advisable for newbie like me to invest on less Volatile coin like Tether or Gemini USD.

they are stablecoin, no need to invest, less volatile coin maybe ltc,xmr will fit your choice
put small investment and try learn some trading by yourself, or try buy some rigs and the profit you can learn to trade from it
it less risk rather than you money direct to buy coin and make your nervous
