If you wanted to become the great tester and successful as software testing professionals here are the great ideas
Learn application by collaboration
One must learn in depth about the application by collaborating with the developers or designers or product owners.
Learn business perspective
The tester must analyse the product as an end user then only one can find even the tiniest error or mistake in the product.
Learn to write the detailed product defect
The product review with detailed defect issues must be well written and presented. Therefore good writing skills is important.
Attend seminars
Seminars and trainings must be attended without fail as it widens the knowledge in this field. And will update you with the current trends in the market.
Join online forums
Many new topics that are in trend can be discussed in such forums hence allowing one to expand his understanding of a subject.
Programming skills
One must be well versed with one or two programs at least since its beneficial for debugging and to analyze the root cause of a problem incurred.
Never assume
Always ask question to the relevant stake holder and never assume.
Always keep an open mind
Keeping an open mind helps one to access new information easily and to think diversely.
Practice
Always put into practice what has been learnt only then one can be expert in this skill.