It is common for beginners to struggle with fingering and chord changes on the guitar, and it is important to remember that learning to play guitar takes time and practice. Finger stretching exercises can be helpful in improving flexibility and dexterity, but it may not solve all problems.

If you feel that the bone structure of your hands is preventing you from playing certain chords, it is recommended to consult with a guitar teacher or a medical professional to assess if there are any underlying issues that need to be addressed. Additionally, experimenting with different finger positions and hand positions may also help in finding the most comfortable and efficient way to play certain chords.

Remember to practice regularly and be patient with yourself as you continue to learn and improve.