In my opinion, we cannot gain experience without facing losses, obstacles and tough moments. However, it is really important to learn from your own mistakes otherwise you will repeat them. In addition to that, the more you gain experience, the less you make mistakes and face losses. And if you are beginner in trading field, you will possibly lose a money at the beginning even when you have enough knowledge. As far I am concerned it is better to start with a low capital to get away the risk of loss and once you gain experience you can add or boost your capital.
Adding to your opinion,it is important to know that only experience does not guaranteed success in trading,there are so many factors that can determine whether one will be successful in trading or not,and the very first one is that you must always make some possible research before venturing out, entering into the field of trading.It is important to have at the back of your mind that trading is not a guarantee to financial success because of the risk involved.The second thing to look out to is a very good strategy.The strategy you use determines the rate of your success,it also determines your fate,whether you will lose or gain. And lastly is the experience you've got in the trading filed.
Experience doesn't guarantee winning but it can also boost your winning percentage, you can easily predict the price because of its movements as you've almost already seen it before but again those two types of things are a must in trading to be successful and have an experience on it you are kind of feeling on where the market goes. Though again loses is loses but don't waste them just because you lose, learn from them and reflect on them so that those loses turn in to learning.