क्या हमें वाहेगुरु या वागुरु का जाप करना चाहिए? Should we chant waheguru or wahguru?

Ravi Goyal Ji this question has been asked many times. There is no Naam jalna in Gurmat. Guru says
ਊਠਤ ਬੈਠਤ ਸੋਵਤ ਧਿਆਈਐ ॥ ਮਾਰਗਿ ਚਲਤ ਹਰੇ ਹਰਿ ਗਾਈਐ ॥੧॥ AGGS 386
Oothat Baithat Sovat Dhiayai || Marag Chalat Hare Har Gayai ||1||
Chant the Name of the God while standing, sitting, sleeping and walking on the way.
How can one chant the Name (Naam) of the God with every breath, sitting, standing, sleeping and walking? Is it possible to chant while sleeping, working in the office, shop etc.? It is not possible. What Guru meant is to remember the spiritual knowledge and wisdom about virtues of the God all the time, with every breath. When we remember God every moment of our life, we will never do anything wrong in our life. Whenever we think of harming others we will remember God and stop it. We will not ask for bribe, not see women as sexual object and will not indulge in sexual harassment, not get angry when someone uses bad language for us, not get jealous of others wealth and get greedy, not look at our spouse and children as our property that they should obey us and we will not be egoistic. These are just few examples.

ਤੇਰੇ ਨਾਮ ਅਨੇਕਾ ਰੂਪ ਅਨੰਤਾ ਕਹਣੁ ਨ ਜਾਹੀ ਤੇਰੇ ਗੁਣ ਕੇਤੇ ॥੧॥ ਰਹਾਉ ॥ AGGS 358
Tere Naam Aneka Roop Ananta Kehan N Jahee Tere Gun Kete ॥ Rehao ||
Your Names are so many, and Your Forms are endless. No one can tell how many glorious virtues You have.
The message of Guru Granth Sahib is that it is not the name of God which is important but Its virtues (Naam). One has to obtain those virtues and do good deeds to merge with the God in this life. That’s the salvation.