i also find it easier to daven when other people are whatching me….. 🙁
If so maybe you can go outside in, by that I mean set your outside appearance of body, face hands etc. as you imagine a super concentrated person would look and (even if you feel silly inside at first) hold that external appearance for the first few brachas of shemoneh esrei and see what happens, you really need to work physically to give this a serious try.