Change the narrative to indirect speech:
"I'm really nervous about my presentation," Ruma admitted, stirring her coffee, "What if I forget everything midway?" Ahmed smiled reassuringly, "You always say that, but you end up delivering a great talk every time." "Just relax and trust yourself!" Tisha exclaimed, "You've worked so hard on this!"
Ruma admitted, stirring her coffee, that she was really nervous about her presentation and wondered what would happen if she forgot everything midway. Ahmed smiled reassuringly and reminded her that she always said that, but she ended up delivering a great talk every time. Tisha exclaimed, encouraging her to relax and trust herself, noting that she had worked so hard on it.