One-handed backhand can give us a lot of trouble at first. It is more difficult than two-handed backhand and is not recommended for beginners. At the same time, it is a more natural stroke than its two-handed counterpart, so you should consider these things before deciding which stroke you will study.
I often recommend learning to play with both hands (as a base) before switching to one-handed play. Backhand is usually considered to be the weaker side than the forehand, although there are of course exceptions to this rule.
In the initial stage, immediately after locating the ball, position yourself in a closed position, while twisting your torso to accumulate energy.
You should hold the racket at your heart with a non-dominant hand, while dominating the Eastern backhand grip (or other intended play). We hold the racket relatively vertically; we try to ensure that the head of the racket is at the height of our head.
Lower the tennis racket head and lead it forward simultaneously - the racket head must be in a position under the ball to be able to rotate it. The left hand releases the heart of the racket in the hip area. The shape of the swing is something like an inverted letter C.
The next stage is the contact of the racket with the tennis ball. It should occur a short distance ahead of us (but further than in the case of two-handed backhand).
The right leg must be firmly placed on the court for a better assessment of the swing and the hit point, and the head of the racket should be perpendicular to the surface of the court at the time of the hit.
The next phase is the stroke prolongation. The racket is still moving towards the ball, and the finish is finished when we bring the racket back and up. The role of the non-dominant hand is also very important, as it moves our balance in the opposite direction.