I have won a lot in the past months
BTCBut in the last month I suffered heavy losses

What do my trading friends tell me to go beyond this difficult period?
Brother, you're not the only one here that suffer losses so cheer up. We always tend to lose because this is how the market dictates and we can't do anything about it rather than just to embrace it and charge it to your experience. And what others says, just do long term holding, it's the safest move for now.