Lord Shani advice on keeping mind steady

The mind is to be brought under Control by undepressed effort; it is like emptying the ocean, drop by drop, with the help of a blade of kusa grass. 

42 The mind distracted by desires and enjoyments should he brought under control by proper means; so also the mind enjoying pleasure in inactivity (laya). For the state of inactivity is as harmful as the state of desires.

43 Turn back the mind from the enjoyment of desires, remembering that they beget only misery. Do not see the created objects, remembering that all this is the unborn Atman. 

44 If the mind becomes inactive, arouse it from laya (this is office work); if distracted, make it tranquil. Understand the nature of the mind when it contains the seed of attachment. When the mind has attained sameness, do not disturb it again. 

45 The yogi must not taste the happiness arising from samadhi; he should detach himself from it by the exercise of discrimination. If his mind, after attaining steadiness, again seeks external objects, he should make it one with Atman through great effort. 

46 When the mind does not lapse into inactivity and is not distracted by desires, that is to say, when it remains unshakable and does not give rise to appearances, it verily becomes Brahman.

47 This Supreme Bliss abides in the Self. It is peace; it is Liberation; it is birthless and cannot be described in words. It is called the omniscient Brahman, being one with the birthless Self, which is the true object of knowledge. 

48 No jiva ever comes into existence. There exists no cause that can produce it. The supreme truth is that nothing ever is born. 

great teacher of shankara  - Gaudapada 

https://tomdas.com/2018/02/22/advaita-vedanta-gaudapadas-method-mandukya-upanishad-karika/