Sometimes, you may face barriers to assertiveness such as fear, anxiety, or resistance from your team. To overcome these barriers and boost your assertiveness, it is recommended to prepare and practice your presentation in advance, as well as anticipate possible questions and objections. Additionally, focus on the positive outcomes and benefits of your idea instead of the negative consequences or risks. Utilize affirmations, such as "I can do this", "I have something valuable to offer", or "I deserve respect" to increase your self-esteem and confidence. Furthermore, breathe deeply and relax your muscles before and during your presentation. It can also be beneficial to use humor, stories, or examples to lighten the mood and connect with your team. Lastly, seek feedback and support from others who can assist you in improving your assertiveness skills.