The quote "I will succeed in my life not immediately but definitely" means that the speaker is confident that they will achieve success in their life, but they may not achieve it immediately or quickly. Instead, they believe that success will come with time and consistent effort.
This quote is often used to encourage perseverance and patience in the pursuit of one's goals. It suggests that success is not always a quick or easy process, and that it may take time and effort to achieve. However, if you remain committed and persistent, success will eventually come.
The quote also highlights the importance of having a long-term perspective and not getting discouraged by setbacks or failures along the way. Success is not always a straight line, but if you keep working hard and stay focused on your goals, you will eventually achieve the success you desire.