You must write clear, meaningful, consistent. Show each full credit. If you use a programming platform for a com commands that produced the result. Decrypt your own ciphertext obtained from a Substitution be meaningless words at the beginning or at the end sir equal parts. the doctor said that the result of this should be a norma common solutions like frequency analysis but it didn't work so i need the actual full solution in a step by step maneer

This is the cipher text:

PTMNYJLCUPCCJAUBCXMAAJDPSGSYLJNMAMPTZG PSZUNGKUZFUTUMPFGGYBJDLCGNYGLAUMSCXGZUC UMSUQMZGAEUQQJEMPTSJEPXGLUPTGLUAEGQQUA CGLYMQQULUQMZGCXJDTXCAXGNMTXCUAEGQQEUN GCJSJUPSYGLXUYAUWCGLUQQMCNMTXCCGQQXGLA TWJLAJNGNMPDCGAMCYDWWGSUEUBEMCXJDCAYC QSGSMCAULNACJJFCXGXJJFUXJDCJWMCANJDCXU PFBJDLGZXUPTGSSJBJDMNUWLUMSMUNAMLAUMS MPTAUAMDAGSUPSMSJPCFGGYCXGAUNGAMIGWJLC PCLGNGNKGLEXUCCXMPTAAUMSCXGZUCGLYMQQUL ESJCXCXGQMCCQGKDABKGGKDCMCUQQZUNGSMWV HGLBNGQUPZXJQBHJMZGL note( please don't reply with general solution the answer should be an normal text in english language)