There are many ways to make oneself stronger, both physically and mentally. Some ways to improve physical strength include:

• Resistance training: Lifting weights, using resistance bands, or bodyweight exercises like push-ups and pull-ups can help build muscle and strength.

• Cardiovascular exercise: Aerobic activities like running, cycling, or swimming can improve cardiovascular fitness and overall health.

• Proper nutrition: Eating a balanced diet with enough protein to support muscle growth is important for strength development.

For mental strength, some ways to improve include:

• Self-reflection: Reflecting on one's thoughts, feelings, and actions can help improve self-awareness and understanding of oneself.
• Setting goals: Setting clear, challenging goals for oneself can help focus efforts and build discipline.
• Mindfulness practices: such as meditation or yoga, can improve focus and emotional regulation.
• Learn to cope with stress and negative emotions, develop self-compassion and positive mindset

It's important to note that building strength, both physically and mentally, takes time and consistent effort. It's also important to consult a doctor or professional before making significant changes to your diet or exercise routine.