Changing a character that is too tangled, while it may take time and patience, is entirely possible with some specific strategies and practice. Here are some suggestions to hopefully help you become more assertive:
Understand why: First, try to understand why you're feeling struggling. Is it because of the fear of making mistakes? Or is it because you're worried about what others think? Understanding the reasons behind it can help you address the problem in a more targeted manner.
Set clear goals: Setting clear, specific goals can help you focus and reduce hesitation in making decisions. The clearer your goal, the more you'll be able to move directly towards it instead of wandering between options.
Take small steps: If a decision seems too big, try breaking it down into smaller, more manageable pieces. This reduces stress and makes it easier for you to make decisions.
Accept imperfections: Recognize that every decision can't be perfect, and sometimes you need to accept "good enough" results. Learning to tolerate uncertainty and imperfections can help you make decisions faster.
Practice decision-making: Start by practicing making small decisions, such as choosing a restaurant or deciding what to wear. Such exercises can enhance your decision-making skills and make you feel more confident in the face of more important decisions.
Time-limited decision-making: Set yourself a time limit for decision-making. For example, decide where to choose a place for dinner within 10 minutes. This can help you learn to make decisions in a limited time and reduce hesitation.
Reflect and learn: After each decision, take the time to reflect on the process and outcome of that decision. Not only will this help you learn from the experience, but it will also boost your confidence in making decisions in the future.
Seek support: Discuss your decision-making process with a friend or family member and listen to their opinions and suggestions. Sometimes, an outside perspective can help you see things clearly and make you less tangled.
Changing your personality is a gradual process, and don't expect it to happen overnight. Give yourself some time and space to gradually build more decisive decision-making habits.