Occasionally I like to use this blog to share my thoughts about how to achieve goals. Here's a summary of what I believe are the keys to success in IELTS, or in any other endeavour:
1) The best information
If you want to achieve something, you first need to find the best source of information and guidance that you can.
2) Persistent work
Of course, you'll need to use the information that you have and take action. You'll need to do the regular practice that leads to improvement.
3) Positive attitude (or growth mindset)
If you have the right guidance and you're working hard, you need to be positive and patient. Try not to waste time worrying; instead, trust the process and know that you will improve gradually. Don't expect fast or easy results.
4) Measure your progress
Finally, you need to find a way to analyse the work that you produce. This will allow you to learn from your mistakes and make any necessary changes to your approach. Also, tracking your progress will give you confidence that you are moving towards your goal.