In preparation for Ramadan:
Learn the virtues of Ramadan and its honourable status; knowing that will help you appreciate it as it should be appreciated and drive you to take advantage of it. Remember that Ramadan is a month of forgiveness and mercy; how many a soul has been spared (of the Fire), how many sins have been forgiven in Ramadan and how many have had their status elevated during it.
Learn ruling pertaining to fasting (especially those specific to your circumstances) so you can complete the fast in the best manner. Many a people fast, but they vary in rewards.
Purify your intention and have a firm resolve to benefit in and from Ramadan.
Set (attainable) goals for yourself to achieve throught Ramadan. Goals such as praying tarawih nightly (from the first night to the last), reciting Quran daily (without fail), being sincere in du’a throughout the month, etc…
Be persistent in making du’a that Allah allows you to do good in Ramadan, makes it easy for you and makes it beloved to you.
Sincere naseeha
