Am I a bad mum?

FTM..I feel so lost. So my 5month old sleeps better when she is sleeping on me. I have tried putting her down many times and usually she wakes up or has short nap. On the other hand when she is sleeping on me she sleeps longer. Almost everyone in my family telling me off and saying that its a bad habit or what im doing im going to regret later. I just feel like its easier for me while she is on me as she at least gets her rest. Should i just keep putting her down? Am I really doing this all wrong??? 😭