A stitch in time saves nine . 7. Concentrate and don't stop thinking. Repetitions should be conscious, not automatic. All troubles come from ignorance . If you do not find working with SuperMemo pleasant, then stop Adding items and pay more attention to cleaning your knowledge system from useless or ill-structured garbage.
Nothings succeeds like success .
Do not cut down on sleep, exercise regularly and give up all hazardous habits like smoking or drinking. Healthy flesh nurtures healthy spirit .