You cannot achieve this without pain, it’s said

noun

1. Resources or advantage acquired or increased profit

   "made substantial gains last year"

2. The act or process of acquiring something
3. An increase in amount, magnitude, or degree

   "a gain in efficiency"

4. The increase (as of voltage or signal intensity) caused by an amplifier
5. The signal-gathering ability of an antenna

verb

1. To acquire or get possession of usually by industry, merit, or craft

   "gain an advantage"

2. To win in competition or conflict

   "the troops gained enemy territory"

3. To get by a natural development or process

   "gain strength"

4. To establish a specific relationship with

   "gain a friend"

5. To make an increase of (a specified amount)

   "gained three percent in the past month"

6. To increase in (a particular quality)

   "gain momentum"

7. To win to one's side persuade

   "gain adherents to a cause"

8. To cause to be obtained or given attract

   "gain attention"

9. To run fast by the amount of

   "the clock gains a minute a day"

10. To get advantage profit

    "hoped to gain by the deal"

11. Increase

    "the day was gaining in warmth"

12. To increase in weight
13. To improve in health or ability
14. To run fast
15. To get closer to something pursued

idiom

1. To move faster or work harder in order to come closer to

   "She was trailing in the race, but she was beginning to gain ground on the leaders."

phrasal verb

1. To come nearer to (someone or something that is ahead in a race or competition)

   "She was still leading at the halfway point, but the other runners were gaining on her."

idiom

1. To take the winning position in a race or competition

   "Her car has gained the lead."

idiom

1. To cause something to be delayed so that more time is available to do what is needed

   "His lawyers are delaying the trial to gain time to prepare their defense."

idiom

1. To become heavier

noun

1. The increase in value of an asset (such as stock or real estate) between the time it is bought and the time it is sold

idiom

1. Used to say that it is necessary to suffer or work hard in order to succeed or make progress

idiom

1. Used to say that it is necessary to suffer or work hard in order to succeed or make progress