Indeed, no one despairs of relief from Allah except the disbelieving people. (Surah Yusuf 12:87)

One must be hopeful of Allahs mercy and forgiveness and fearful of His punishment. It is this fear that should lead one to seek Allahs forgiveness with hope. Allah says:

Know that Allah is severe in punishment and that Allah is Forgiving and Merciful. (Surat al-Maaidah 5:98)

In the above verse, Allah gives us reason to fear because His punishment is justly severe, as well as good reason to have hope, since He is the Most Forgiving and Merciful. There should be a balance between fear and hope and not too much or too less of one or the other.

We should always remain between fear and hope. For, the right and the approved kind of fear is that which acts as a barrier between the slave and the things forbidden by Allah. But, if fear is excessive, then the possibility is that the man will fall into despair and pessimism.

On the other hand the approved state of optimism is of a man who does good in the light of the Shari’ah and is hopeful of being rewarded for it. Or, conversely, if a man committed a sin, he repents sincerely, and is hopeful of being forgiven. Allah (swt) said:

“Verily, those who believed, and those who migrated and fought in the way of Allah, it is they who are hopeful of Allah’s mercy. And Allah is very Forgiving, very Merciful.” (Al-Baqarah, 218)

In contrast, if a man indulges in sins and excesses, but is hopeful that he would be forgiven without doing anything good, then, this is self-deception, mere illusion and false hope. Abu ‘All Rowzbari has said, “Fear and hope are like the two wings of a bird. If they are well balanced, the flight will be well balanced. But, If one is stunted, the Right would also be stunted. And, to be sure, if the two are lost, the bird will soon be in the throes of death.” Allah has praised the people of hope and fear in the following verse:

‘Is one who worships devotedly during the night, prostrating himself or standing, fearing the Hereafter, and hoping for the mercy of his Lord (is equal to him who doesn’t do these things)?’ (Al Zumar, 9)

Hope then also demands fear. If that was not the case, one would be in a state of false security. Conversely, fear demands hope. Without that it would be despair.

Fear and hope, both should be equally proportioned in our hearts, in our worship, and in our dua to Allah. Allah says:

Call out to Him with fear and hope. (Surat al-Araaf 7:56)

They forsake their beds to call their Lord in fear and hope. (Surat as-Sajdah 32:16)

Voluntary fasting for the pleasure of Allah

Fasting in general and voluntary fasting in particular is a great worship. Fasting is not restricted to Ramadhan, but it is an act of worship that can be [and should be in some cases] performed at any time and at any place except when not recommended. Indeed, it is a worship that draws the believer closer to Allah and closer to perfection.
Intention for voluntary fasting

As opposed to Ramadan, the intention does not have to be made before dawn. The person can intend fasting [and start fasting] after dawn any time [even after noon] given that he did not eat anything.]

Fasting Mondays and Thursdays & Fasting three days of every month(White days):

“Fasting and the Qur’an will intercede for the slave on the Day of Resurrection. Fasting will say: ‘O My Rabb! I prevented him from food and desires, so accept my intercession for him.’ And the Qur’an will say: ‘I prevented him from sleep during the night, so accept my intercession for him. So let us get closer to Allah by fasting Mondays and Thursdays or at least 3 days every month on the 14th,15th and 16th. If we leave something for the pleasure of Allah then we will get MUCH greater in return!