This technical note focuses on heavy. metal soil contamination. Metals in Soil. Mining, manufacturing, and the use of synthetic products (e.g. pesticides, paints, batteries, industrial waste, and land application of industrial or domestic sludge) can result in heavy metal contamination of urban and agricultural soils.
As a beginner, try practicing the guitar for 10-15 minutes a day. As you begin to build your finger muscles and improve your playing, you can increase this amount of time as you see fit. You may feel comfortable practice for 30 minutes per day, an hour per day, or even more.
Just keep playing. At first you might only be able to play for an hour, but the more you play, the more your strength and finger toughness will increase. I know - I'm a guitar player. The secret to success is keep your left hand thumb always at the bottom of the neck. This makes for fast and accurate fingering.