The easiest way to get around that is to do a slide instead of a bend. If there is a particular string you need to do full bends on, you can go with a slightly lighter gauge string on the B or G string. I experimented with that and if you go too light it makes the sound too tinny sounding, so I went back to my regular gauge strings, but you might be able to find the right magical combination that works.

Some guitars are naturally easier to bend due to their shorter scale length, like some of those 12 fret guitars. That’s why I started using 12 fret guitars when a particular tune required full bends. Shorter scale makes it easier to do full bends. Regular scale will require a ton of finger strength, but it can be done. If I go at it as hard as I can, I can usually muster a full bend on the G string, but it is really tough to do well. I cannot do full bend vibrato on a regular scale guitar in standard tuning.

Finally, you can simply tune down a half or full step and experiment with different string gauges that work best to give the best sound and still bend easily.

I find it quite unpractical to do full bends on my acoustic. While it may be possible in the range of the 7th to 12 frets on the higher strings, generally it requires a bend so large that the other strings get pushed aside and create noise, etc. I’ve always found I can accomplish similar musical effect with slides, or find an alternative way to navigate those passages. Good luck in your attempt, hope you can make it happen.

I can easily do full bends on any of my 5 acoustic guitars, because I use 010 gauge strings on all of them. But here’s some food for thought: According to the laws of physics, if you tune any kind of strings all to the same note, the strings with the shortest length will be the easiest to bend. So smaller body guitars (short scale) will be much easier to bend notes on. The force required to bend a string depends on the string tension, and the longer the string, the more tension is required to bring it into tune. Ukulele = super easy to bend notes. Stand up bass = super hard to bend notes. Google it, if you don’t believe me.