Modify your expectations. Sometime you will fail or can't do it (or afford to hire it done). Then you must modify your plans. A large tree falls in your driveway....you can't lift it, roll it, etc. Maybe you will just have to move the drive way (easier to do if it's dirt and not asphalt

) and drive around the dang log.
Master simple machine....find a way to work them into everything you need to do. Pick up every pulley, rope, tire chock, jack, etc you find at rummage sale, garage sales, and the like.
Make friends with older teen and early 20 year old boys. My parents live in a college town 80 min away. They have "teams" renting each house on either side of them....wrestling team on one side and something on the other. Every fall she goes over with a plate of cookies and introduces herself. The Sophmore, Jr and Sr boys already know her (and her cookies) so she's only new to the freshmen. Then as she needs this that or the other thing lifted, dug, pulled.....she knocks on the door and sees if anyone can help. Someone always does (not always the same guy). Anytime someone helps in any way....a plate of some sort of goodie will show up (sometimes she has it in hand when looking for a helper). They all just call my folks grandma and grandpa.....the boys have even been known to come over and ask them for advice!