Invest with me in a digital asset worth 150 Usdt with all legal guarantees. Zero loss

I am a beginner in trading and I lost all my capital in one deal, and now I am trying to return with the small amounts of coins I have in particular, especially since I lost an amount of 600$

This is the first deal I am making after my return. I hope everyone can give me advice and guidance so that the loss does not happen again.