Succulent leaves are wilting

Salam n good morning.
Just want to ask for help about my succulent.
I just bought it a week ago and now the leaves started to wilt and die one by one.
I wonder why, I water the succulent once per 3 days as suggested.

This is the succulent (i don't know the type though)

This is one of the leaves that wilt

I need to take immediate action before the whole succulent wilt.

Help please... What should I do?

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Inking

Assalamualaikum & Salam sejahtera.
Saja nak kongsi progress kerja me. X sangka dalam satu hari bley inking 2 pg. Alhamdulillah~~
Well, mungkin sebab panelnya yg sedikit.
Kepala dah pening sebab banyak guna marker, baunya agak mengancam..
Oh, tak boleh jadi, kena cari software photoshop jugaks... Laptop baru me nih xde photoshop.. yg lamenyer ada lar tp da ranap....

Ok, inilah 2 pg yg ku dah siap inking tuh. Ku x letak dialog or sfx lagi. pun sama, kena tunggu photoshop. heee~

(ye, saya tahu saya x pandai lukis gambar bumi...)

Sekian sahaja, Wassalam..

Cuba2 lukis 10 pg awal -RAW-

Assalamualaikum, salam sejahtera kepada sapa2 yg terkunjung blog ku ini~
Hari ni nak post ini sahaja.

Jangan curi ya~

(Ada sebahagian yang masih belum letak dialog)

Sekian, wassalam..