Who is Allah?
Short answer: Allah is the one true God, the Creator of everything, who has no partner, no child and nothing like Him.
Allah is the proper name of the one true God, the Creator and Sustainer of all that exists. Surah al-Ikhlas summarises it: “Say: He is Allah, the One. Allah, the Eternal Refuge. He neither begets nor is born, and there is none comparable to Him” (112:1–4).
Muslims affirm the names and attributes Allah affirmed for Himself in the Quran and that His Messenger ﷺ affirmed, without distorting them, denying them, asking “how”, or likening them to creation: “There is nothing like Him, and He is the All-Hearing, the All-Seeing” (ash-Shura 42:11). Learn the 99 names of Allah.
Answered according to the Quran and authentic Sunnah as explained by the scholars of Ahl al-Sunnah wal-Jama‘ah. For your own situation, ask a trusted scholar.