Seven habits of a good believer......

1. Faith and righteous deeds 

“Whoever works righteousness — whether male or female — while he (or she) is a true believer (of Islamic Monotheism) verily, to him We will give a good life (in this world with respect, contentment and lawful provision), and We shall pay them certainly a reward in proportion to the best of what they used to do (i.e. Paradise in the Hereafter).”
[al-Nahl 16:97]

The Prophet (peace and blessings of Allah be upon him) expressed this in a saheeh hadeeth (authentic report) in which he said: “How wonderful is the situation of the believer, for all his affairs are good. If something good happens to him, he gives thanks for it and that is good for him; if something bad happens to him, he bears it with patience, and that is good for him. This does not apply to anyone but the believer.” (Narrated by Muslim, no. 2999).

2.Being kind to people in word and deed

“There is no good in most of their secret talks save (in) him who orders Sadaqah (charity in Allah’s Cause), or Ma‘roof (Islamic Monotheism and all the good and righteous deeds which Allah has ordained), or conciliation between mankind; and he who does this, seeking the good Pleasure of Allah, We shall give him a great reward.
[al-Nisa 4:114]

3.Being patience in tensions

And seek help through patience and prayer, and indeed, it is difficult except for the humbly submissive [to Allah ]

4.focusing all one’s thoughts on the present day

And not worrying about the future or grieving about the past. Hence the Prophet (peace and blessings of Allah be upon him) sought refuge with Allah from worry and regret, from regret for things in the past which cannot be put right or changed, and worry which may come because of fear for the future. So one should focus only on the present day, and focus one's efforts on getting things right today. If a person is focused on the present, he will do things properly and forget about worry and regret.

5.Repentance and seeking forgivness for all the past sins and asking Allah to help to protect from evil thoughts

{But whosoever repents after his crime and does righteous good deeds (by obeying Allaah), then verily, Allaah will pardon him (accept his repentance). Verily, Allaah is Oft Forgiving, Most Merciful } [Al-Maa’idah:39 – interpretation of the meaning

“Truly, Allaah loves those who turn unto Him in repentance and loves those who purify themselves”[al-Baqarah 2:222]

6.Remember Allah 

One of the greatest means of feeling content and relaxed and of acquiring peace of mind is to remember Allah a great deal (dhikr). That has a great effect in bringing contentment and peace of mind, and relieving worry and distress. Allah says: "Verily, in the remembrance of Allah do hearts find rest"
[al-Ra'd 13:28]

7.Look at the people who has less blessing than you

If a person experiences anxiety and distress because of a disaster, then one of the most effective means of relieving himself of that is to think of the worst scenario to which that may lead, and try to accept what is at present.