There is no conflict if you practice hard pen and brush calligraphy at the same time.
As long as you have enough time, there is no conflict if you practice the two at the same time. On the contrary, they will promote each other.
On the one hand, practicing hard-pen calligraphy can improve the structure of calligraphy. There are differences in stroke thickness between brush calligraphy and hard-pen calligraphy, but there is no difference in structure. When writing with hard pen, we can understand and practice the structural rules summarized by the ancients, and then apply them to the writing of calligraphy with brush.
On the other hand, practicing calligraphy can enrich the expressiveness of hard-pen calligraphy strokes. People's aesthetic appreciation of hard-pen calligraphy is often influenced by traditional calligraphy. Therefore, if the strokes of hard-pen calligraphy contain rich strokes, clicks, and pauses in the starting, moving, turning, and ending of the stroke, the entire character will be more attractive and will be well received by people. The better you write the strokes of calligraphy with brush, the more precise the strokes of hard-pen calligraphy will become.
Extended information:
How to learn calligraphy:
1. Tracing
Writing posture: Five-finger holding method, first use the thumb Clamp it tightly with the middle finger, and the free space in the palm should be like a cube of about 4 centimeters. Then use the ring finger and little finger to naturally place it behind the brush. The body should be straight, and the arm should be at a suitable distance from the table.
Common method: Use tissue paper (silk) to cover the original work and write or draw according to the original appearance. Drawing red is one of the methods.
2. Writing
The calligrapher compares the calligraphy with the original calligraphy and writes it on another piece of paper as exactly as possible as the original.
3. Back copy
After writing many times, write it again based on the image of the original work left in your mind.
4. Creation
Based on the constantly revised writing habits and writing style, new works are written by re-selecting the writing content and expression style.
Baidu Encyclopedia - Brush Calligraphy
Baidu Encyclopedia - Soft Brush Calligraphy
Baidu Encyclopedia - Hard Brush Calligraphy