It's pretty common advice to tell beginners that you should always be positive, trust everything, you will win soon but in reality, this isn't really helping. Maybe keeping positive might help your mood but it's not helping to win because you need luck and skills for winning. Having a positive mind doesn't help in terms of decision making, since sometimes you need to be technical and the required knowledge for that is experience. Tracking everything, making analysis on different games and learning day by day is better than just being positive on gambling.

No one wants to burn money just because you feel positive and you'll hit jackpot soon, be responsible to your moves and have a good allocation of money.