Yes you can make good profit, but if you have a portion of income per week like $40 per week you can invest $10 in bitcoins. This will reduce your financial risk which is much more bearable than months.
More bearable than monthly investment only when a person receives their income weekly, monthly income requires a monthly plan so it actually depends on an investor choice. I usually measure investing using percentage because it’s more easy and comfortable for investors, $10 every week times a month is approximately $40 and it’s pretty nice because investing need a comfortable environment. For anyone who can go beyond should invest beyond $10 because just $10 can’t keep a good record but as time goes meanwhile $40 income per week is still low especially when involving much plans. Financial risk should be considered as the major factor when investing not just bitcoin investment but generally, a good management plan can help in terms of risk management.