I lost $300 scalping xrp. At first everything was fine, I came out in + by 150, but then it turned out that I went into minus by 300 because I bet on a fall of $250 on 30 leverage. It began to grow at such a speed that there were big losses. My portfolio is about $1000, what can you advise, how best to distribute risks in order to have a chance to survive in such situations and get a profit?