I didn't think it would be this difficult.
これほどの成功は初めてだ。
This is the first time I've had this much success.
Kanji form using 程; rarely used.
Kanji form using 此れ; rarely used.
Kanji form using 是; rarely used.
Kanji form using 是 and 程; rarely used.
Kanji form using 此れ and 程; rarely used.
Compound of これ (this) and ほど (extent, degree).