Ironic as it may sound, to avoid bad beats, you have to face them
You can take several steps to avoid bad beats and losing money. Let's cite this scenario as an example. Suppose you're in a high-stakes No-limit match for Texas Hold'Em. When the hole cards came in, you got one pair of sevens. Under this situation in a high-stakes match like this, the cards you received have a small probability of being useful. Your gut will tell you to let it go yet you have been at the table for two hours already and you're becoming uninterested so you opted to call.
Magically, you got another seven from the flop. Now you have a three of the same kind and because the additional two cards from the flop are practically useless, it's very probable that your hand is a bomb. You're aware that you shouldn't come off as very weak hence you put a small raise. Other players call your raise and the match goes on. Suddenly, you got another seven. You now have a quadruples set. You raise one more time and get called once more. You were pretty confident with your hand until it was too late for you to realize that you did not notice the formation of a natural straight. You just lost.
Actually, there's no foolproof way to avoid bad beats in poker. When it takes place, it's usual that you believe what you have is a very strong hand. The truth is, if you happen to make a strong hand, you attempt to make the most amount of chips possible from that hand and when other players play along, it's challenging to know if you're already in trouble.
The best technique in order to avoid bad beats is to actually embrace them. It may sound ridiculous but it makes sense. Several establishments offer what is called a Bad Beat Jackpot. For every pot played, they allocate a small amount and combine it in one fund. If a player loses because of a bad beat, the jackpot is triggered and is shared between all the players, with the loser having the biggest share. So, a bad beat isn't really that bad.