You won't even think about trading under pressure if you are learning to trade the right way. You cannot trade under pressure if you read trading books, have mentors, be a part of peer group of traders. The people who are likely to trade under pressure are those who are greedy and want to make it a get rich schemes. Trading for them is short term and not a long term endeavor.
My first experience in trading I was told that I'll start making profits in not less than 2 weeks and this was the very reasons that draws my attention to trading and I joined the trends of people under pressure of having profits in no time. But one thing that humbled me was the fact that I had to educate myself on some certain things like getting information on how to make it in trading and thus I got all the knowledge and I had to understand that pressure is inevitable in business but you have to fight it and everything needs time.