The card that represents the subconscious is the Seven of Swords. This card indicates that you are in a moment of great change, a moment in which you are making important decisions that will affect your future. The Seven of Swords also indicates that there are difficulties you must face before you can proceed with your path. You may be blocked by fears or doubts, but this card reminds you that you must keep working on yourself and overcome your fears in order to achieve success.
The Queen of Cups represents your conscious. This card suggests that you have an excellent understanding of the situation and are ready to deal with it. The Queen of Cups also indicates that you are a creative person and that you have the intuition to make the right decisions. The card also suggests that you have the ability to see beyond appearances and it is possible to draw accurate conclusions based on what you see.
The last card in your block is The World. This card represents your super conscious and indicates that you understand the importance of the journey you are on. Follow your passion, be open to new things and don't be afraid to change. The card also suggests that while there may be moments of doubt and uncertainty, you need to stay focused on your goal and believe in yourself.
Reading the three tarot cards shows that attending a training course would be beneficial for you. This is because you have become aware of the difficulties to face, you are aware of your creative potential and you have a clear goal to achieve. Therefore, the answer to the question is: Yes, attending a training course will be useful for you.