Common mistakes in trading
Most losses among new traders come from a short list of repeated errors rather than from bad luck. Knowing the list will not make you immune, but it makes the mistakes easier to spot in yourself.
Trading without a plan
Opening a position because a price is moving, with no idea of when you will leave, is the commonest error. A plan states in advance how much you will risk, what would make you exit with a loss and what would make you take a gain. Without one, decisions are made in the middle of a price swing, which is when judgement is worst.
Risking too much on one idea
Putting a large share of your money into a single asset or a single trade means that one bad move does lasting damage. Many experienced traders limit what they risk on any one position to a small fraction of their total. The exact figure is personal, but the principle of limiting it is not.
Chasing losses
After a loss, the urge to win it back quickly leads to bigger bets at worse moments. Accept that losses happen, stop for a day if you feel emotional and never borrow money to recover a loss.
Following the crowd
Buying because everyone is talking about an asset usually means buying near the top of the excitement. Social media posts are not research, and some are paid promotions. Check claims against independent sources.
Ignoring costs and tax
Commissions, spreads and conversion charges add up, especially for frequent trading. Gains may also be taxable in the UK. Keep records from the start so you are not reconstructing them later.