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.
Almost everyone assumes that trading a short and fastest means to make money (well it looks that way), but the reality you'll only get to know when you get involved. For many the long term endeavour towards making profit is embedded in investment alone but little did they think or know that for you to be a successful trader it's not an overnight attainment but years of consistency (building blocks on your failures and experiences) and hardwork on yourself by learning and relearning...